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 Britsche democratie in oorlogstijd / door Mary Agnes Hamilton Photomail operation - USA War Department Field Manual, FM 11-150 Advanced map and aerial photograph reading - USA Basic Field Manual, FM 21-26 Examination for gunners - USA Antiaircraft Artillery Field Manual, FM 4-119 Service of the piece : 105-MM howitzer self-propelled - USA Armored Force Field Manual, FM 17-63 With the 6th Airborne Division in Normandy / R.N. Gale monde et les hommes Rhin, Meuse, Escaut / Gaston Haelling blue devils in Italy : a history of the 88th Infantry Division in World War II / by J.P. Delaney a panther book Invasion 1940 / Peter Fleming Netherlands American Cemetery and Memorial / American Battle Monuments Commission