APA (7th ed.) Citation

Minnesota Geological Survey & Green, J. C. (1982). Geologic map of Minnesota, Two Harbors sheet: Bedrock geology. Minnesota Geological Survey, University of Minnesota.

Chicago Style (17th ed.) Citation

Minnesota Geological Survey and John C. Green. Geologic Map of Minnesota, Two Harbors Sheet: Bedrock Geology. St. Paul, Minn: Minnesota Geological Survey, University of Minnesota, 1982.

MLA (9th ed.) Citation

Minnesota Geological Survey and John C. Green. Geologic Map of Minnesota, Two Harbors Sheet: Bedrock Geology. Minnesota Geological Survey, University of Minnesota, 1982.