Hi Lynn, I used this several times when I did the profile of Barnabas Horton-196. See this for an example.
You type the full source under==Sources=== <references />
The first time you use it in the bio you type<ref>then copy/paste the source then end with </ref>
When you next use it in your bio, you type<ref>then give the source a name, page #</ref> In the case of Barnabas Horton-196 I used the last name of the author <ref>Dinan, p. 1</ref>
I hope I explained this effectively, so you will understand what I mean. If not, ask and I will try to explain further.