Corps of engineers / War Department : Combat regiment - The platoon and the company - USA Voorschrift, Training Regulations, No. 445-18 training regulations Cavalry : drill and combat signals / prep. under direction of the Chief of Cavalry - United Staten War Department Training Regulations TR 425-20 Corps of engineers / War Department : Combat regiment - The battalion and regiment - USA Voorschrift, Training Regulations, No. 445-19 united states army in world war ii procurement and training of ground combat troops / Robert Roswell Palmer, Bell I. Wiley and William R. Keast
