APA (7th ed.) Citation

United States. War Department. (1921). Examination and classification of gunners of field artillery. GPO.

Chicago Style (17th ed.) Citation

United States. War Department. Examination and Classification of Gunners of Field Artillery. [Washington]: GPO, 1921.

MLA (9th ed.) Citation

United States. War Department. Examination and Classification of Gunners of Field Artillery. GPO, 1921.

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