APA (7th ed.) Citation

United States. Army Reserve. (1991). Engineering skills. Army Reserve.

Chicago Style (17th ed.) Citation

United States. Army Reserve. Engineering Skills. [Washington, D.C.?]: Army Reserve, 1991.

MLA (9th ed.) Citation

United States. Army Reserve. Engineering Skills. Army Reserve, 1991.

Warning: These citations may not always be 100% accurate.