APA (7th ed.) Citation

United States. Bureau of Mines. (1942). Typical analyses of coals of United States. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Mines. Typical Analyses of Coals of United States. [Washington]: [s.n.], 1942.

MLA (9th ed.) Citation

United States. Bureau of Mines. Typical Analyses of Coals of United States. [s.n.], 1942.

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