APA (7th ed.) Citation

United States. Bureau of Mines. (1938). Cost of coal-­mine fatalities and some permanent disabilities in Ohio, Jan. 1, 1930-Dec. 31, 1934. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Mines. Cost of Coal-­mine Fatalities and Some Permanent Disabilities in Ohio, Jan. 1, 1930-Dec. 31, 1934. [Washington]: [s.n.], 1938.

MLA (9th ed.) Citation

United States. Bureau of Mines. Cost of Coal-­mine Fatalities and Some Permanent Disabilities in Ohio, Jan. 1, 1930-Dec. 31, 1934. [s.n.], 1938.