Geological Survey (U.S.) & ProQuest (Firm). (1906). Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. Zinc and lead deposits of the upper Mississippi Valley. [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. Zinc and Lead Deposits of the Upper Mississippi Valley. 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. Zinc and Lead Deposits of the Upper Mississippi Valley. [publisher not identified], 1906.
Warning: These citations may not always be 100% accurate.