Schmidt, R. G. (1906). Geology and ore deposits of the Cuyuna North Range, Minnesota. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationSchmidt, Robert Gordon. Geology and Ore Deposits of the Cuyuna North Range, Minnesota. Washington: United States Department of the Interior, Geological Survey, 1906.
MLA (9th ed.) CitationSchmidt, Robert Gordon. Geology and Ore Deposits of the Cuyuna North Range, Minnesota. United States Department of the Interior, Geological Survey, 1906.
Warning: These citations may not always be 100% accurate.