APA (7th ed.) Citation

United States. Bureau of Mines. (1941). Metal and nonmetal-mine accidents in United States during calendar year 1939 (excluding coal mines). [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Mines. Metal and Nonmetal-mine Accidents in United States During Calendar Year 1939 (excluding Coal Mines). [Washington]: [s.n.], 1941.

MLA (9th ed.) Citation

United States. Bureau of Mines. Metal and Nonmetal-mine Accidents in United States During Calendar Year 1939 (excluding Coal Mines). [s.n.], 1941.