Colvin, F. H., & Viall, E. (1917). United States rifles and machine guns: A detailed account of the methods used in manufacturing the Springfield, 1903 model service rifle; also descriptions of the modified Enfield rifle and three types of machine guns. McGraw-Hill.
Chicago Style (17th ed.) CitationColvin, Fred H., and Ethan Viall. United States Rifles and Machine Guns: A Detailed Account of the Methods Used in Manufacturing the Springfield, 1903 Model Service Rifle; Also Descriptions of the Modified Enfield Rifle and Three Types of Machine Guns. New York: McGraw-Hill, 1917.
MLA (8th ed.) CitationColvin, Fred H., and Ethan Viall. United States Rifles and Machine Guns: A Detailed Account of the Methods Used in Manufacturing the Springfield, 1903 Model Service Rifle; Also Descriptions of the Modified Enfield Rifle and Three Types of Machine Guns. McGraw-Hill, 1917.