Antiaircraft artillery : organization and tactics - USA Coast Artillery Field Manual, FM 4-105 Aan de roomsch-katholieke dienstplichtigen / door F.J.H. Evers tm Ordnance maintenance : telescope mounts M23, M28, M31, M32, M42, M46, M52C, M52D, M54 and M71, 1954 - Technical Manual TM 9-6101
