Geological Survey (U.S.) & Michigan. Geological Survey Division. (1957). Isle Royale, Keweenaw County, Michigan. The Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.) and Michigan. Geological Survey Division. Isle Royale, Keweenaw County, Michigan. [Reston, Va.]: The Survey, 1957.
MLA (9th ed.) CitationGeological Survey (U.S.) and Michigan. Geological Survey Division. Isle Royale, Keweenaw County, Michigan. The Survey, 1957.
Warning: These citations may not always be 100% accurate.