APA (7th ed.) Citation

Geological Survey (U.S.) & ProQuest (Firm). (1927). Department of the Interior Hubert Work, Secretary U. S. Geological Survey George Otis Smith, Director Bulletin 786 Contributions to Economic Geology (short papers and preliminary reports) 1926 Part II. Mineral Fuels. [publisher not identified].

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and ProQuest (Firm). Department of the Interior Hubert Work, Secretary U. S. Geological Survey George Otis Smith, Director Bulletin 786 Contributions to Economic Geology (short Papers and Preliminary Reports) 1926 Part II. Mineral Fuels. Washington: [publisher not identified], 1927.

MLA (9th ed.) Citation

Geological Survey (U.S.) and ProQuest (Firm). Department of the Interior Hubert Work, Secretary U. S. Geological Survey George Otis Smith, Director Bulletin 786 Contributions to Economic Geology (short Papers and Preliminary Reports) 1926 Part II. Mineral Fuels. [publisher not identified], 1927.