field manual Browning machine gun caliber .30, HB, M1919A4 (mounted in combat vehicles) / prep. under dir. of the Chief of Infantry field manual Browning machine gun, caliber .30, M1917 field manual 81-MM mortar, MI / Prepared under direction of the chief of infantry field manual Barrage balloon : operation of matériel and employment of personnel field manual Watermanship field manual 81-MM mortar squad and platoon field manual 75-mm tank gun M 2 : (mounted in medium tank M 3) field manual Employment of antiaircraft artillery searchlights : FM 44-6 field manual army postal service / Prepared under direction of the adjutant general field manual Tactics and technique / Prepared under direction of the chief of the armored force field manual Military sanitation field manual Military training / prepared under direction of the Chief of Staff
