APA (7th ed.) Citation

United States. Army. Air Corps. (1925). Pennsylvania, Bellefonte, air mail field. GPO.

Chicago Style (17th ed.) Citation

United States. Army. Air Corps. Pennsylvania, Bellefonte, Air Mail Field. [Washington]: GPO, 1925.

MLA (9th ed.) Citation

United States. Army. Air Corps. Pennsylvania, Bellefonte, Air Mail Field. GPO, 1925.

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