APA (7th ed.) Citation

Minnesota Geological Survey & Austin, G. S. (1970). Geologic map of Minnesota, New Ulm sheet: Bedrock geology. The Survey.

Chicago Style (17th ed.) Citation

Minnesota Geological Survey and George S. Austin. Geologic Map of Minnesota, New Ulm Sheet: Bedrock Geology. [St. Paul, Minn.?]: The Survey, 1970.

MLA (9th ed.) Citation

Minnesota Geological Survey and George S. Austin. Geologic Map of Minnesota, New Ulm Sheet: Bedrock Geology. The Survey, 1970.