APA (7th ed.) Citation

United States. Bureau of Mines. (1931). Mine explosions and fires in U.S. during fiscal year ending June 30, 1931. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Mines. Mine Explosions and Fires in U.S. During Fiscal Year Ending June 30, 1931. [Washington]: [publisher not identified], 1931.

MLA (9th ed.) Citation

United States. Bureau of Mines. Mine Explosions and Fires in U.S. During Fiscal Year Ending June 30, 1931. [publisher not identified], 1931.

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