APA (7th ed.) Citation

United States. Department of Defense. (1973). Army aviation annual written examination. [DOD].

Chicago Style (17th ed.) Citation

United States. Department of Defense. Army Aviation Annual Written Examination. [Washington, DC?]: [DOD], 1973.

MLA (9th ed.) Citation

United States. Department of Defense. Army Aviation Annual Written Examination. [DOD], 1973.

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