The PA Bowhunter Education program has some nice material, on game within our state, that of deer, turkey, bear, and elk, and some cool pictures of shot angles with vital information. You can find a link to the program here...
http://www.bowhunter-ed.com/pa/index.htm
Go to Chapter 7, it deals with shots and recovery.
I always thought it would be cool to have a book, similar to a childrens book, with cut out pictures/pages, where the first page would be the animal, the second would be the vitals, and the third the skeletal structure.