Geological Survey (U.S.) & ProQuest (Firm). (1915). Department of the Interior. United States Geological Survey. George Otis Smith, Director. Professional Paper 87. Geology and Ore Deposits of Copper Mountain and Kasaan Peninsula, Alaska. [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. Professional Paper 87. Geology and Ore Deposits of Copper Mountain and Kasaan Peninsula, Alaska. Washington: [publisher not identified], 1915.
MLA (9th ed.) CitationGeological Survey (U.S.) and ProQuest (Firm). Department of the Interior. United States Geological Survey. George Otis Smith, Director. Professional Paper 87. Geology and Ore Deposits of Copper Mountain and Kasaan Peninsula, Alaska. [publisher not identified], 1915.