diff --git a/.gitignore b/.gitignore
index 0830dd4..6a590d7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,4 +35,7 @@ data/
 Thumbs.db
 
 .claude/
-.claude
\ No newline at end of file
+.claude
+
+# Content drafts
+drafts/
\ No newline at end of file
diff --git a/backend/app/models.py b/backend/app/models.py
index 43aa10d..b31f518 100644
--- a/backend/app/models.py
+++ b/backend/app/models.py
@@ -13,6 +13,7 @@ class SegmentType(StrEnum):
     IFRAME = "iframe"
     GALLERY = "gallery"
     TEAM = "team"
+    SOURCES = "sources"
 
 
 class Segment(BaseModel):
diff --git a/frontend/src/components/admin/AddSegmentModal.vue b/frontend/src/components/admin/AddSegmentModal.vue
index 7c5d4c4..b758725 100644
--- a/frontend/src/components/admin/AddSegmentModal.vue
+++ b/frontend/src/components/admin/AddSegmentModal.vue
@@ -1,8 +1,9 @@
 <script setup lang="ts">
 import { ref, computed } from "vue";
-import type { SegmentType } from "@/types/segment";
+import type { SegmentType, Source } from "@/types/segment";
 import AssetUploader from "@/components/admin/AssetUploader.vue";
 import RichTextEditor from "@/components/admin/RichTextEditor.vue";
+import { formatApaCitation } from "@/utils/formatApa";
 
 const emit = defineEmits<{
   create: [data: { type: SegmentType; title: string; content: string; metadata?: Record<string, unknown> }];
@@ -16,14 +17,30 @@ const segmentTypes: { value: SegmentType; label: string; description: string; ic
   { value: "video", label: "Video", description: "Embed a video file", icon: '<svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><polygon points="5 3 19 12 5 21 5 3" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" /></svg>' },
   { value: "audio", label: "Audio", description: "Embed an audio file", icon: '<svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15.536 8.464a5 5 0 010 7.072M12 6v12m0 0a3 3 0 003-3V9a3 3 0 00-3 3m0 0a3 3 0 01-3 3V9a3 3 0 013-3" /></svg>' },
   { value: "iframe", label: "Embed", description: "Embed an external website or tool", icon: '<svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M10 20l4-16m4 4l4 4-4 4M6 16l-4-4 4-4" /></svg>' },
+  { value: "sources", label: "Sources", description: "Add an APA reference list", icon: '<svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 6.253v13m0-13C10.832 5.477 9.246 5 7.5 5S4.168 5.477 3 6.253v13C4.168 18.477 5.754 18 7.5 18s3.332.477 4.5 1.253m0-13C13.168 5.477 14.754 5 16.5 5c1.746 0 3.332.477 4.5 1.253v13C19.832 18.477 18.246 18 16.5 18c-1.746 0-3.332.477-4.5 1.253" /></svg>' },
 ];
 
 const selectedType = ref<SegmentType>("markdown");
 const title = ref("");
 const content = ref("");
 const galleryImages = ref<string[]>([]);
+const sources = ref<Source[]>([]);
+const sourceForm = ref({ authors: "", year: "", title: "", source: "", url: "" });
+
+function addSource() {
+  const f = sourceForm.value;
+  if (!f.authors.trim() && !f.title.trim()) return;
+  sources.value = [...sources.value, { id: crypto.randomUUID(), ...f }];
+  sourceForm.value = { authors: "", year: "", title: "", source: "", url: "" };
+}
+
+function removeSource(id: string) {
+  sources.value = sources.value.filter((s) => s.id !== id);
+}
+
 const canSubmit = computed(() => {
   if (selectedType.value === "gallery") return galleryImages.value.length > 0;
+  if (selectedType.value === "sources") return sources.value.length > 0;
   if (selectedType.value === "markdown") return true;
   return content.value.trim().length > 0;
 });
@@ -49,6 +66,9 @@ function handleSubmit() {
   if (selectedType.value === "gallery") {
     data.metadata = { images: galleryImages.value };
   }
+  if (selectedType.value === "sources") {
+    data.metadata = { sources: sources.value };
+  }
   emit("create", data);
 }
 
@@ -70,7 +90,7 @@ const assetAcceptMap: Record<string, string> = {
 
         <!-- Type selector: icon cards -->
         <div class="mb-5">
-          <div class="grid grid-cols-3 gap-2 sm:grid-cols-6">
+          <div class="grid grid-cols-3 gap-2 sm:grid-cols-7">
             <button
               v-for="st in segmentTypes"
               :key="st.value"
@@ -82,7 +102,7 @@ const assetAcceptMap: Record<string, string> = {
                   : 'border-gray-200 hover:border-gray-300 dark:border-gray-700 dark:hover:border-gray-600'
               "
               :title="st.description"
-              @click="selectedType = st.value; content = ''; galleryImages = []"
+              @click="selectedType = st.value; content = ''; galleryImages = []; sources = []"
             >
               <span class="text-gray-500 dark:text-gray-400" v-html="st.icon" />
               <span class="text-xs font-medium text-gray-900 dark:text-gray-100">{{ st.label }}</span>
@@ -154,6 +174,74 @@ const assetAcceptMap: Record<string, string> = {
             </div>
             <AssetUploader accept="image/*" :multiple="true" label="Click to upload photos, or drag and drop" @uploaded="handleGalleryImageUploaded" />
           </div>
+
+          <!-- Sources -->
+          <div v-else-if="selectedType === 'sources'">
+            <!-- Added sources list -->
+            <div v-if="sources.length > 0" class="mb-3 space-y-2">
+              <div
+                v-for="source in sources"
+                :key="source.id"
+                class="group flex items-start gap-2 rounded bg-gray-50 px-3 py-2 text-sm dark:bg-gray-700"
+              >
+                <p
+                  class="min-w-0 flex-1 pl-6 -indent-6 text-gray-700 dark:text-gray-200"
+                  v-html="formatApaCitation(source)"
+                />
+                <button
+                  class="shrink-0 text-red-400 hover:text-red-600"
+                  @click="removeSource(source.id)"
+                >
+                  &times;
+                </button>
+              </div>
+            </div>
+
+            <!-- Source input form -->
+            <div class="space-y-2">
+              <div class="flex gap-2">
+                <input
+                  v-model="sourceForm.authors"
+                  type="text"
+                  placeholder="Authors (e.g. Liu, Z., Zhang, W., & Yang, P.)"
+                  class="min-w-0 flex-1 rounded border border-gray-300 px-3 py-1.5 text-sm focus:border-primary-400 focus:outline-none dark:border-gray-600 dark:bg-gray-700 dark:text-gray-100 dark:placeholder-gray-500"
+                />
+                <input
+                  v-model="sourceForm.year"
+                  type="text"
+                  placeholder="Year"
+                  class="w-20 rounded border border-gray-300 px-3 py-1.5 text-sm focus:border-primary-400 focus:outline-none dark:border-gray-600 dark:bg-gray-700 dark:text-gray-100 dark:placeholder-gray-500"
+                />
+              </div>
+              <input
+                v-model="sourceForm.title"
+                type="text"
+                placeholder="Title"
+                class="w-full rounded border border-gray-300 px-3 py-1.5 text-sm focus:border-primary-400 focus:outline-none dark:border-gray-600 dark:bg-gray-700 dark:text-gray-100 dark:placeholder-gray-500"
+              />
+              <div class="flex gap-2">
+                <input
+                  v-model="sourceForm.source"
+                  type="text"
+                  placeholder="Journal, publisher, or site name"
+                  class="min-w-0 flex-1 rounded border border-gray-300 px-3 py-1.5 text-sm focus:border-primary-400 focus:outline-none dark:border-gray-600 dark:bg-gray-700 dark:text-gray-100 dark:placeholder-gray-500"
+                />
+                <input
+                  v-model="sourceForm.url"
+                  type="text"
+                  placeholder="URL or DOI link (optional)"
+                  class="min-w-0 flex-1 rounded border border-gray-300 px-3 py-1.5 text-sm focus:border-primary-400 focus:outline-none dark:border-gray-600 dark:bg-gray-700 dark:text-gray-100 dark:placeholder-gray-500"
+                />
+              </div>
+              <button
+                :disabled="!sourceForm.authors.trim() && !sourceForm.title.trim()"
+                class="rounded bg-gray-200 px-3 py-1.5 text-sm font-medium text-gray-700 transition-colors hover:bg-gray-300 disabled:opacity-50 dark:bg-gray-600 dark:text-gray-200 dark:hover:bg-gray-500"
+                @click="addSource"
+              >
+                Add source
+              </button>
+            </div>
+          </div>
         </div>
 
         <!-- Actions -->
diff --git a/frontend/src/components/admin/SegmentEditor.vue b/frontend/src/components/admin/SegmentEditor.vue
index 698c032..503461e 100644
--- a/frontend/src/components/admin/SegmentEditor.vue
+++ b/frontend/src/components/admin/SegmentEditor.vue
@@ -1,8 +1,9 @@
 <script setup lang="ts">
 import { ref } from "vue";
-import type { Segment } from "@/types/segment";
+import type { Segment, Source } from "@/types/segment";
 import AssetUploader from "@/components/admin/AssetUploader.vue";
 import RichTextEditor from "@/components/admin/RichTextEditor.vue";
+import { formatApaCitation } from "@/utils/formatApa";
 
 const props = defineProps<{
   segment: Segment;
@@ -26,6 +27,48 @@ const teamMembers = ref<{ name: string; student_number: string }[]>(
 const newMemberName = ref("");
 const newMemberNumber = ref("");
 
+const sources = ref<Source[]>(
+  Array.isArray(props.segment.metadata.sources)
+    ? [...(props.segment.metadata.sources as Source[])]
+    : [],
+);
+const editingSourceId = ref<string | null>(null);
+const sourceForm = ref({ authors: "", year: "", title: "", source: "", url: "" });
+
+function resetSourceForm() {
+  sourceForm.value = { authors: "", year: "", title: "", source: "", url: "" };
+  editingSourceId.value = null;
+}
+
+function addOrUpdateSource() {
+  const f = sourceForm.value;
+  if (!f.authors.trim() && !f.title.trim()) return;
+  if (editingSourceId.value) {
+    sources.value = sources.value.map((s) =>
+      s.id === editingSourceId.value ? { ...s, ...f } : s,
+    );
+  } else {
+    sources.value = [...sources.value, { id: crypto.randomUUID(), ...f }];
+  }
+  resetSourceForm();
+}
+
+function editSource(source: Source) {
+  editingSourceId.value = source.id;
+  sourceForm.value = {
+    authors: source.authors,
+    year: source.year,
+    title: source.title,
+    source: source.source,
+    url: source.url,
+  };
+}
+
+function removeSource(id: string) {
+  sources.value = sources.value.filter((s) => s.id !== id);
+  if (editingSourceId.value === id) resetSourceForm();
+}
+
 function normaliseUrl(url: string): string {
   const trimmed = url.trim();
   if (trimmed && !/^https?:\/\//i.test(trimmed)) return `https://${trimmed}`;
@@ -41,6 +84,9 @@ function handleSave() {
   if (props.segment.type === "team") {
     metadata.value = { ...metadata.value, members: teamMembers.value };
   }
+  if (props.segment.type === "sources") {
+    metadata.value = { ...metadata.value, sources: sources.value };
+  }
   if (JSON.stringify(metadata.value) !== JSON.stringify(props.segment.metadata)) {
     updates.metadata = metadata.value;
   }
@@ -184,6 +230,95 @@ const assetAcceptMap: Record<string, string> = {
           </button>
         </div>
       </div>
+
+      <!-- Sources: reference list -->
+      <div v-else-if="segment.type === 'sources'">
+        <!-- Existing sources -->
+        <div v-if="sources.length > 0" class="mb-4 space-y-2">
+          <div
+            v-for="source in sources"
+            :key="source.id"
+            class="group flex items-start gap-2 rounded bg-white px-3 py-2 text-sm dark:bg-slate-700"
+          >
+            <p
+              class="min-w-0 flex-1 pl-6 -indent-6 text-slate-700 dark:text-slate-200"
+              v-html="formatApaCitation(source)"
+            />
+            <div class="flex shrink-0 gap-1 opacity-0 group-hover:opacity-100">
+              <button
+                class="rounded p-1 text-slate-400 hover:text-slate-700 dark:hover:text-slate-200"
+                title="Edit"
+                @click="editSource(source)"
+              >
+                <svg class="h-3.5 w-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                  <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15.232 5.232l3.536 3.536m-2.036-5.036a2.5 2.5 0 113.536 3.536L6.5 21.036H3v-3.572L16.732 3.732z" />
+                </svg>
+              </button>
+              <button
+                class="rounded p-1 text-red-400 hover:text-red-600"
+                title="Remove"
+                @click="removeSource(source.id)"
+              >
+                &times;
+              </button>
+            </div>
+          </div>
+        </div>
+
+        <!-- Add/edit source form -->
+        <div class="space-y-2">
+          <div class="flex gap-2">
+            <input
+              v-model="sourceForm.authors"
+              type="text"
+              placeholder="Authors (e.g. Liu, Z., Zhang, W., & Yang, P.)"
+              class="min-w-0 flex-1 rounded border border-slate-300 px-3 py-1.5 text-sm focus:border-primary-400 focus:outline-none dark:border-slate-600 dark:bg-slate-700 dark:text-slate-100 dark:placeholder-slate-500"
+            />
+            <input
+              v-model="sourceForm.year"
+              type="text"
+              placeholder="Year"
+              class="w-20 rounded border border-slate-300 px-3 py-1.5 text-sm focus:border-primary-400 focus:outline-none dark:border-slate-600 dark:bg-slate-700 dark:text-slate-100 dark:placeholder-slate-500"
+            />
+          </div>
+          <input
+            v-model="sourceForm.title"
+            type="text"
+            placeholder="Title"
+            class="w-full rounded border border-slate-300 px-3 py-1.5 text-sm focus:border-primary-400 focus:outline-none dark:border-slate-600 dark:bg-slate-700 dark:text-slate-100 dark:placeholder-slate-500"
+          />
+          <div class="flex gap-2">
+            <input
+              v-model="sourceForm.source"
+              type="text"
+              placeholder="Journal, publisher, or site name"
+              class="min-w-0 flex-1 rounded border border-slate-300 px-3 py-1.5 text-sm focus:border-primary-400 focus:outline-none dark:border-slate-600 dark:bg-slate-700 dark:text-slate-100 dark:placeholder-slate-500"
+            />
+            <input
+              v-model="sourceForm.url"
+              type="text"
+              placeholder="URL or DOI link (optional)"
+              class="min-w-0 flex-1 rounded border border-slate-300 px-3 py-1.5 text-sm focus:border-primary-400 focus:outline-none dark:border-slate-600 dark:bg-slate-700 dark:text-slate-100 dark:placeholder-slate-500"
+            />
+          </div>
+          <div class="flex gap-2">
+            <button
+              :disabled="!sourceForm.authors.trim() && !sourceForm.title.trim()"
+              class="rounded bg-slate-200 px-3 py-1.5 text-sm font-medium text-slate-700 transition-colors hover:bg-slate-300 disabled:opacity-50 dark:bg-slate-600 dark:text-slate-200 dark:hover:bg-slate-500"
+              @click="addOrUpdateSource"
+            >
+              {{ editingSourceId ? "Update" : "Add" }}
+            </button>
+            <button
+              v-if="editingSourceId"
+              class="rounded px-3 py-1.5 text-sm text-slate-500 transition-colors hover:text-slate-700 dark:text-slate-400 dark:hover:text-slate-200"
+              @click="resetSourceForm"
+            >
+              Cancel
+            </button>
+          </div>
+        </div>
+      </div>
     </div>
 
     <!-- Actions -->
diff --git a/frontend/src/components/segments/SegmentRenderer.vue b/frontend/src/components/segments/SegmentRenderer.vue
index 235f60d..c8667a7 100644
--- a/frontend/src/components/segments/SegmentRenderer.vue
+++ b/frontend/src/components/segments/SegmentRenderer.vue
@@ -6,6 +6,7 @@ import VideoSegment from "@/components/segments/VideoSegment.vue";
 import AudioSegment from "@/components/segments/AudioSegment.vue";
 import IframeSegment from "@/components/segments/IframeSegment.vue";
 import GallerySegment from "@/components/segments/GallerySegment.vue";
+import SourcesSegment from "@/components/segments/SourcesSegment.vue";
 
 defineProps<{
   segment: Segment;
@@ -19,4 +20,5 @@ defineProps<{
   <AudioSegment v-else-if="segment.type === 'audio'" :segment="segment" />
   <IframeSegment v-else-if="segment.type === 'iframe'" :segment="segment" />
   <GallerySegment v-else-if="segment.type === 'gallery'" :segment="segment" />
+  <SourcesSegment v-else-if="segment.type === 'sources'" :segment="segment" />
 </template>
diff --git a/frontend/src/components/segments/SourcesSegment.vue b/frontend/src/components/segments/SourcesSegment.vue
new file mode 100644
index 0000000..bc165a5
--- /dev/null
+++ b/frontend/src/components/segments/SourcesSegment.vue
@@ -0,0 +1,30 @@
+<script setup lang="ts">
+import { computed } from "vue";
+import type { Segment, Source } from "@/types/segment";
+import { formatApaCitation } from "@/utils/formatApa";
+
+const props = defineProps<{
+  segment: Segment;
+}>();
+
+const sortedSources = computed(() => {
+  const sources = Array.isArray(props.segment.metadata.sources)
+    ? ([...props.segment.metadata.sources] as Source[])
+    : [];
+  return sources.sort((a, b) =>
+    a.authors.localeCompare(b.authors, undefined, { sensitivity: "base" }),
+  );
+});
+</script>
+
+<template>
+  <div v-if="sortedSources.length > 0" class="space-y-2">
+    <p
+      v-for="source in sortedSources"
+      :key="source.id"
+      class="pl-8 -indent-8 text-sm text-slate-800 dark:text-slate-200"
+      v-html="formatApaCitation(source)"
+    />
+  </div>
+  <p v-else class="text-sm italic text-slate-400 dark:text-slate-500">No sources added yet.</p>
+</template>
diff --git a/frontend/src/types/segment.ts b/frontend/src/types/segment.ts
index 8edc4f0..ac2b132 100644
--- a/frontend/src/types/segment.ts
+++ b/frontend/src/types/segment.ts
@@ -1,4 +1,13 @@
-export type SegmentType = "markdown" | "pdf" | "video" | "audio" | "iframe" | "gallery" | "team";
+export type SegmentType = "markdown" | "pdf" | "video" | "audio" | "iframe" | "gallery" | "team" | "sources";
+
+export interface Source {
+  id: string;
+  authors: string;
+  year: string;
+  title: string;
+  source: string;
+  url: string;
+}
 
 export interface Segment {
   id: string;
diff --git a/frontend/src/utils/formatApa.ts b/frontend/src/utils/formatApa.ts
new file mode 100644
index 0000000..0ca9f54
--- /dev/null
+++ b/frontend/src/utils/formatApa.ts
@@ -0,0 +1,37 @@
+import type { Source } from "@/types/segment";
+
+function escapeHtml(text: string): string {
+  return text.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
+}
+
+function formatUrl(url: string): string {
+  const escaped = escapeHtml(url);
+  return `<a href="${escaped}" target="_blank" rel="noopener noreferrer" class="text-primary-600 underline break-all dark:text-primary-400">${escaped}</a>`;
+}
+
+export function formatApaCitation(source: Source): string {
+  const parts: string[] = [];
+
+  if (source.authors) {
+    const authors = escapeHtml(source.authors);
+    parts.push(authors.endsWith(".") ? authors : `${authors}.`);
+  }
+
+  parts.push(`(${escapeHtml(source.year || "n.d.")}).`);
+
+  if (source.title) {
+    const title = escapeHtml(source.title);
+    parts.push(title.endsWith(".") ? `<em>${title}</em>` : `<em>${title}</em>.`);
+  }
+
+  if (source.source) {
+    const src = escapeHtml(source.source);
+    parts.push(src.endsWith(".") ? `<em>${src}</em>` : `<em>${src}</em>.`);
+  }
+
+  if (source.url) {
+    parts.push(formatUrl(source.url));
+  }
+
+  return parts.join(" ").replace(/\.\./g, ".");
+}