Schmidt, R. G. (1976). Geology of the Precambrian W (lower Precambrian) rocks in western Gogebic County, Michigan. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationSchmidt, Robert Gordon. Geology of the Precambrian W (lower Precambrian) Rocks in Western Gogebic County, Michigan. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1976.
MLA (9th ed.) CitationSchmidt, Robert Gordon. Geology of the Precambrian W (lower Precambrian) Rocks in Western Gogebic County, Michigan. United States Department of the Interior, Geological Survey, 1976.
Warning: These citations may not always be 100% accurate.