APA (7th ed.) Citation

Army War College (U.S.). Historical Section. (1938). The genesis of the American first army. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Army War College (U.S.). Historical Section. The Genesis of the American First Army. Washington: U.S. Govt. Print. Off, 1938.

MLA (9th ed.) Citation

Army War College (U.S.). Historical Section. The Genesis of the American First Army. U.S. Govt. Print. Off, 1938.