APA (7th ed.) Citation

United States. Army. Air Corps. (1923). Alabama, Birmingham, Roberts Field. GPO.

Chicago Style (17th ed.) Citation

United States. Army. Air Corps. Alabama, Birmingham, Roberts Field. [Washington]: GPO, 1923.

MLA (9th ed.) Citation

United States. Army. Air Corps. Alabama, Birmingham, Roberts Field. GPO, 1923.

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