APA (7th ed.) Citation

United States. War Department. (1927). Changes in AR 35-6640. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. War Department. Changes in AR 35-6640. Washington: [publisher not identified], 1927.

MLA (9th ed.) Citation

United States. War Department. Changes in AR 35-6640. [publisher not identified], 1927.

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