APA (7th ed.) Citation

United States. Army. Air Corps. (1918). Liberty engine storage. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. Air Corps. Liberty Engine Storage. [Washington]: [publisher not identified], 1918.

MLA (9th ed.) Citation

United States. Army. Air Corps. Liberty Engine Storage. [publisher not identified], 1918.

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