Service of the piece 8-inch Howitzer M 1 - USA Field Artillery Field Manual, FM 6-91 Field artillery : tactics and technique of division artillery and higher artillery echelons - USA War Department Field Manual, FM 6-100 economische en sociale ontwikkelingsgang van de Vereenigde Staten van 1940 tot 1945 Photomail operation - USA War Department Field Manual, FM 11-150 Advanced map and aerial photograph reading - USA Basic Field Manual, FM 21-26 Helden zonder glorie / Norman Mailer ; [vert. uit het Engels door J.F. Kliphuis] Service of the piece : 105-MM howitzer self-propelled - USA Armored Force Field Manual, FM 17-63 sfinx zonder geheim / door een diplomaat marine corps historical reference pamphlet U.S. Marine Corps special units of World War II / by Charles L. Updegraph, Jr 4th Marine Division in World War II / by John C. Chapin Assault gun section and platoon - USA Armored Force Field Manual, FM 17-25 Eisenhower: at war : 1943-1945 / by David Eisenhower