For those in the Healthcare field, you can order a free copy from the Borden Institute.
http://www.bordeninstitute.army.mil/order.cfm
I have some of the other books published by the Border Institute, and they are full of quality information.
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Totally just saw that somebody already posted this link above.
OK, let me just say than that I am an E-4, and I had no problems receiving "War Surgery". If your reasons are valid, I think they will send the book to you as long as you are in the medical field.