Browning machine gun, caliber .50, HB, M2 (mounted in combat vehicles) - USA Basic Field Manual, FM 23-65 Tank training : Volume II-Part III: Pamphlet No. 3: 5-in. vickers machine guns marks IV and II Identification list for gun, machine, Vickers 303-inch, Mark I on mounting, tripod, 303-inch M.G., Marks 4B & 5. : Section CI Small arms training : Training / War Office. Army Council. Vol. I. Pamphlet no. 7: .303-inch machine gun - Engeland Voorschrift, 26/GS Publications/1095 Small arms training : Thompson Sub-Machine-Gun / War Office. Army Council. Vol. I - Engeland Voorschrift, 26/GS Publications/353 Browning machine gun, caliber .50, M2, water cooled, and mounts - USA Voorschrift, Technical Manual, 9-226 Milling machines, shapers, and planers - USA Voorschrift, Technical Manual, 1-421 Service of the piece : Multiple machine gun mounts - USA Voorschrift, Field Manual, 44-57 IBM. Ideeën brengende mededeelingen Handbook of instructions for the Fairchild Type CG-16 Camera machine gun and accessories / Fairchild Aerial Camera Corporation Cours de machines a l'usage des officiers d'artillerie, des ingénieurs et des praticiens / par J.C. Migout et C.L. Bergery Machine pour mesurer la vitesse initiale des mobiles de différens calibres, projettés sous tous les angles ... / Jacques Francois Louis Grobert