APA (7th ed.) Citation

United States. Army. American Expeditionary Forces. (1918). Propellers approved for use on airplanes of types in use by American Expeditionary Forces. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. American Expeditionary Forces. Propellers Approved for Use on Airplanes of Types in Use by American Expeditionary Forces. [Place of publication not identified]: [publisher not identified], 1918.

MLA (9th ed.) Citation

United States. Army. American Expeditionary Forces. Propellers Approved for Use on Airplanes of Types in Use by American Expeditionary Forces. [publisher not identified], 1918.