HUNNICUTT, R. P. Patton: A History of the American Main Battle Tank. Novato: Presidio Press, 1984. 464 s. Dostupné online. ISBN0-89141-230-1. S. 93. (anglicky)
web.archive.org
CAMERON, Robert. "American Tank Development During The Cold War" [online]. U.S. Army Armor Center, 0004-2420 [cit. 2020-03-05]. Dostupné online.