APA (7th ed.) Citation

United States. War Department. (1917). Drill and service regulations for field artillery (horse and light); changes numbers 1. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. War Department. Drill and Service Regulations for Field Artillery (horse and Light); Changes Numbers 1. Washington: U.S. GPO, 1917.

MLA (9th ed.) Citation

United States. War Department. Drill and Service Regulations for Field Artillery (horse and Light); Changes Numbers 1. U.S. GPO, 1917.