I am looking for a good book or two on M1 carbines. One for assembly & disassembly, and maybe another to help research it's origin. I inherited one from my step father a number of years ago, and would like to know more about it. He had two, one he carried in WWII and one in Korea while serving in the Navy. I am not sure which one I got, but I would like to know more about the gun anyway. Anybody have any thoughts or suggestions?