Geological Survey (U.S.) & ProQuest (Firm). (1906). Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. Corundum and its occurrence and distribution in the United States. [publisher not identified].
Chicago Style (17th ed.) CitationGeological Survey (U.S.) and ProQuest (Firm). Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. Corundum and Its Occurrence and Distribution in the United States. Washington: [publisher not identified], 1906.
MLA (9th ed.) CitationGeological Survey (U.S.) and ProQuest (Firm). Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. Corundum and Its Occurrence and Distribution in the United States. [publisher not identified], 1906.