Materiel instruction memorandum : The Firing Battery 155mm Howitzer M1 Tactics instruction memorandum : Radio voice procedure for field artillery Logarithmic trigonometric and short-base tables Gunnery instruction memorandum : Use of Photomaps in Field Artillery Battalion Survey and Unobserved Fire Gunnery instruction memorandum : Laying A Mosaic by Radial Line Method Gunnery instruction memorandum : The Aerial O.P. Materiel instruction memorandum : Field Artillery Ammunition Courses in U.S. army schools for the school year ... - USA Voorschrift Pamphlet No. 20-21 Field officer course : Communication techniques / Air University. Air command and staff school Field officer course : Personnel / Air University. Air command and staff school Prospectus of the course in aviation medicine for naval medical officers / U.S. naval school of aviation medicine & research, naval air station Field officer course : Unit organisation / Air University. Air command and staff school. Vol. 1