Army personnel tests and measurement - USA Voorschrift, Technical Manual, 12-260 Service of the M9 and M10 type antiaircraft directors - USA Voorschrift, Field Manual, 44-38 Service of the piece 37-mm fire unit - USA Voorschrift, Field Manual, 44-58 Aviation in support of ground forces - USA Voorschrift, Basic Field Manual, 31-35 Air-ground operations - USA Voorschrift, Field Manual, 31-35 Service of the piece : Twin 40-mm gun motor carriage M19 - USA Voorschrift, Field Manual, 44-62 Employment of the amphibious support brigade - USA Voorschrift, Field Manual, 60-25 Amphibious operations battalion in assault landings - USA Voorschrift, Field Manual, 60-5 Courses in U.S. army schools for the school year ... - USA Voorschrift Pamphlet No. 20-21 field manual Combat in fortified areas and towns. - USA Voorschrift, Field Manual, 31-50