APA (7th ed.) Citation

United States. War Department. (1920). Shoulder patch insignia. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. War Department. Shoulder Patch Insignia. Washington: [publisher not identified], 1920.

MLA (9th ed.) Citation

United States. War Department. Shoulder Patch Insignia. [publisher not identified], 1920.

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