Campbell, John. Naval Weapons of World War Two. Annapolis: Naval Institute Press, 1985.
Johnson, Melvin M., Jr. Rifles and Machine Guns. New York: William Morrow and Co., 1944.
Williams, Anthony G. (2003). Rapid Fire: The development of automatic cannon, heavy machine guns and their ammunition for armies, navies and air forces. Shrewsbury: Airlife Publishing LTD. ISBN1-84037-435-7.
Heller, Daniel. Zwischen Unternehmertum, Politik und Überleben. Emil G. Bührle und die Werkzeugmaschinenfabrik Oerlikon, Bührle & Co 1924–1945. Verlag Huber: Frauenfeld 2002.
International Harvester Corporation. "Navy Day", The Harvester World Volume 35, Number 12, December 1944; p. 12. Harvester Press, Chicago, 1944.