37mm Gun, Antitank, M3 - USA Basic Field Manual, FM 23-70 Medium and heavy antiaircraft artillery - USA Voorschrift, Field Manual, 44-4 Antiaircraft fire control system M33 - USA Voorschrift, Field Manual, 44-33A Service of the M9 and M10 type antiaircraft directors - USA Voorschrift, Field Manual, 44-38 Firing Tables for Gun 155 mm. M1 and M1A1. Firing. Shell H.E. M101. Shell Chemical M104. - USA Voorschrift Firing Tables 155-S-2