APA (7th ed.) Citation

Center of Military History. (1986). John Langdon. [U.S. Army Center of Military History].

Chicago Style (17th ed.) Citation

Center of Military History. John Langdon. [Washington, D.C.?]: [U.S. Army Center of Military History], 1986.

MLA (9th ed.) Citation

Center of Military History. John Langdon. [U.S. Army Center of Military History], 1986.