Index to army regulations : including all regulations and changes promulgated prior to january 1, 1943 / prepared under the direction of the adjutant general … Index to army regulations : including all regulations and changes promulgated prior to january 1, 1944 / prepared under the direction of the adjutant general … Landing operations on hostile shores - USA Basic Field Manual, FM 31-5 (suppl.) Staff Manual Field Artillery : Tactical Employment - USA Field Manual, FM 6-20 Field artillery : Gunnery - USA Field Manual, FM 6-40 Materiel instruction memorandum : The Firing Battery 105mm Howitzer M2 Materiel instruction memorandum : 75mm Pack Howitzer, M-1 Materiel instruction memorandum : Preparation of Vehicles for Deep Water Fording Materiel instruction memorandum : Duties of the Safety Officer Materiel instruction memorandum : Instructions for Semi-Annual (6,000 Mile) Maintenance Service Materiel instruction memorandum : Maintenance of Field Artillery Materiel