American Medium Tank. Presidio Press. 1994. ISBN 0-89141-080-5. Hunnicutt, R. P. Half-Track: A History of American Semi-Tracked Vehicles. Presidio Press
American Medium Tank. Presidio Press. 1994. ISBN 0-89141-080-5. Hunnicutt, R. P. Half-Track: A History of American Semi-Tracked Vehicles. Presidio Press