Operator's manual :
Army model CH-47B helicopter.
APA Citation
United States. Department of the Army. (1989). Operator's manual: Army model CH-47B helicopter. [Washington, D.C.]: Headquarters, Dept. of the Army.
MLA Citation
United States. Department of the Army. Operator's Manual: Army Model CH-47B Helicopter. [Washington, D.C.]: Headquarters, Dept. of the Army, 1989.
Warning: These citations may not always be complete (especially for serials).