APA (7th ed.) Citation

United States. Bureau of Mines. (1931). Production of explosives in U.S. during calendar year 1931. GPO.

Chicago Style (17th ed.) Citation

United States. Bureau of Mines. Production of Explosives in U.S. During Calendar Year 1931. [Washington]: GPO, 1931.

MLA (9th ed.) Citation

United States. Bureau of Mines. Production of Explosives in U.S. During Calendar Year 1931. GPO, 1931.

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