"U.S. Handguns of World War II; The Secondary Pistols and Revolvers" by Charles W. Pate, Andrew Mobray Publishers, P.O. Box 460, Lincoln, RI 02865. Toll Free 1-800-999-4697 for free catalog.
When I bought mine, it list for $39.00, don't know what it is now. A great reference for WW2 OP's, Commandos, DS's, Model N and M's, Service Ace's, Woodsmen and .38 Supers as used by your government.