Vliegtuigmitrailleur Duits model MG 151, kaliber 15 x 96 mm German Air Force 1933-1945 : an anatomy of failure / Matthew Cooper 2nd TAF / Christopher F. Shores ; ill. by Richard Ward ; [forew. by H. Broadhurst] schiffer military history Luftwaffe vs. RAF : flying clothing of the air war, 1939-45 / Mick J. Prodger men-at-arms series Luftwaffe airborne and field units / text by Martin Windrow ; colour plates by Michael Roffe