I suggest that we not have both parenthetical in-text citations and a subsequent clickable endnote number for the reference. It seems more than is needed. The clickable endnote code is so user-friendly in WE (unlike flipping back and forth to the end of a book to see what extra bits are available), that I propose doing away with parenthetical in-text references altogether. In addition, being that the purpose of these materials is learning, not communication of scholarly research, we should keep the content as clean as possible.
A consequence of this change will be that in the case where a specific page is part of the citation, it will be in the endnote, and we will not be able to bundle references, being that the page numbers differ. I think keeping the text clean without parenthetical references outweighs this unfortunate consequence.
I started to make this change, sorry to barge ahead. Turns out the citations had a small mix up in assignments, so the page number issue doesn't come up (although it might in another context).