A reference tag is a set of tags that allow for linking the reference of a fact to where the fact took place.

Examples:

• <ref>{{c|Amazing Spider-Man #1}}</ref>

• <ref>His actual real name is Francis.</ref>

• <ref name="Exiles #18">{{c|Exiles #18}}</ref>

• <ref>As seen in the now-classic {{c|Uncanny X-Men #40}}, on page 18</ref>