Geological Survey (U.S.) & ProQuest (Firm). (1914). Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 574. Mining districts of the Dillon quadrangle, Montana and adjacent areas. [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 574. Mining Districts of the Dillon Quadrangle, Montana and Adjacent Areas. Washington: [publisher not identified], 1914.
MLA (9th ed.) CitationGeological Survey (U.S.) and ProQuest (Firm). Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 574. Mining Districts of the Dillon Quadrangle, Montana and Adjacent Areas. [publisher not identified], 1914.