Our first house had a resident library that was almost as old as the house( built in 1912).
One of the books was a hard bound book on surgical techniques. It is drawings so it isn't too gory, but if you want to know how to remove a leg or an appendix this is the book for you. It imparts a knowledge of anatomy that you wouldn't get from Grey's Anatomy in that you see the parts moved around so you can cut the various parts and how to stop the bleeding.
It might be more than you want, but it would be a good reference book.
I would try Major Surplus for any field first aid books, they might be handy also.
JA
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