Geological Survey (U.S.) & ProQuest (Firm). (1908). Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 346. Structure of the Berea Oil Sand in the Flushing quadrangle. Harrison, Belmont, and Guernsey Counties, Ohio. [publisher not identified].
Chicago Style (17th ed.) CitationGeological Survey (U.S.) and ProQuest (Firm). Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 346. Structure of the Berea Oil Sand in the Flushing Quadrangle. Harrison, Belmont, and Guernsey Counties, Ohio. Washington: [publisher not identified], 1908.
MLA (9th ed.) CitationGeological Survey (U.S.) and ProQuest (Firm). Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 346. Structure of the Berea Oil Sand in the Flushing Quadrangle. Harrison, Belmont, and Guernsey Counties, Ohio. [publisher not identified], 1908.