I'm not a newbie, but I've wondered about this for awhile so thought I'd just finally ask here.

When I find a book I want and click on mooch this book, and there is more than one copy available, I was curious as to what order they are listed. Meaning when I click on the option to choose who to mooch from, how does the system decide which member is listed first, second and so forth? Are they in random order, or in order of who listed the book first...