APA (7th ed.) Citation

United States. Bureau of Mines. (1942). Technical and economic study of drying lignite and subbituminous coal by Fleissner process. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Mines. Technical and Economic Study of Drying Lignite and Subbituminous Coal by Fleissner Process. [Washington]: [s.n.], 1942.

MLA (9th ed.) Citation

United States. Bureau of Mines. Technical and Economic Study of Drying Lignite and Subbituminous Coal by Fleissner Process. [s.n.], 1942.