It aids verifiability to include quotes, especially for material that is likely to be challenged.

I'm not aware of the MPA style. Do you mean APA style? The style you're using, Wikipedia calls shortened notes. My suggestion was to link the notes to the references using . This can also be done using wikilinks (which I've never used, but could try). It's not strictly necessary, but is helpful. Since I'm not very good at research, I was offering to perform this nitpicky task.

I really like the work you are doing for this article—this draft is much more satisfying that what I found in article space. Skousen is starting to get more attention, so I would like to see your version go live. /  ☺ ☭