APA (7th ed.) Citation

United States. Bureau of Mines. (1945). Hazards of the Trolley-Locomotive Haulage System in Coal Mines. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Mines. Hazards of the Trolley-Locomotive Haulage System in Coal Mines. [Washington]: [s.n.], 1945.

MLA (9th ed.) Citation

United States. Bureau of Mines. Hazards of the Trolley-Locomotive Haulage System in Coal Mines. [s.n.], 1945.