APA (7th ed.) Citation

Geological Survey (U.S.) & ProQuest (Firm). (1909). Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 368. Washing and coking tests of coal at the fuel-testing plant, Denver, Colo. July 1, 1907, to June 30, 1908. [publisher not identified].

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and ProQuest (Firm). Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 368. Washing and Coking Tests of Coal at the Fuel-testing Plant, Denver, Colo. July 1, 1907, to June 30, 1908. Washington: [publisher not identified], 1909.

MLA (9th ed.) Citation

Geological Survey (U.S.) and ProQuest (Firm). Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 368. Washing and Coking Tests of Coal at the Fuel-testing Plant, Denver, Colo. July 1, 1907, to June 30, 1908. [publisher not identified], 1909.