APA (7th ed.) Citation

United States. Army. Signal Corps. Enlistment circular. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. Signal Corps. Enlistment Circular. Washington: [publisher not identified].

MLA (9th ed.) Citation

United States. Army. Signal Corps. Enlistment Circular. [publisher not identified].

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