APA (7th ed.) Citation

United States. Army. Air Corps. (1920). Announcement, inauguration of Air Service information circular (L/A). U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Army. Air Corps. Announcement, Inauguration of Air Service Information Circular (L/A). Washington: U.S. GPO, 1920.

MLA (9th ed.) Citation

United States. Army. Air Corps. Announcement, Inauguration of Air Service Information Circular (L/A). U.S. GPO, 1920.

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