APA (7th ed.) Citation

Geological Survey (U.S.) & ProQuest (Firm). (1921). Department of the Interior. John Barton Payne, Secretary. United States Geological Survey. George Otis Smith, Director. Bulletin 721 Geology and petroleum resources of northwestern Kern County California. [publisher not identified].

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and ProQuest (Firm). Department of the Interior. John Barton Payne, Secretary. United States Geological Survey. George Otis Smith, Director. Bulletin 721 Geology and Petroleum Resources of Northwestern Kern County California. Washington: [publisher not identified], 1921.

MLA (9th ed.) Citation

Geological Survey (U.S.) and ProQuest (Firm). Department of the Interior. John Barton Payne, Secretary. United States Geological Survey. George Otis Smith, Director. Bulletin 721 Geology and Petroleum Resources of Northwestern Kern County California. [publisher not identified], 1921.