Landing-force manual United States navy : 1927 / rev. by the Bureau of Navigation, Navy Department Uniform regulations : United States Marine Corps 1929 Uniform regulations : United States Marine Corps 1937 Staff Manual Dispatch drafting manual Materiel instruction memorandum : The Firing Battery 105mm Howitzer M2 Gunnery instruction memorandum : The Graphical Firing Table (GFT) 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 Gunnery instruction memorandum : Conduct of Fire by Forward Observation Methods Gunnery instruction memorandum : Use of Oblique Photographs in Firing