Geological Survey (U.S.). (1998). State of Minnesota, Scale 1: 500,000, 44090-ST-500, 1986. [publisher not identified].
Chicago Style (17th ed.) CitationGeological Survey (U.S.). State of Minnesota, Scale 1: 500,000, 44090-ST-500, 1986. [Place of publication not identified]: [publisher not identified], 1998.
MLA (9th ed.) CitationGeological Survey (U.S.). State of Minnesota, Scale 1: 500,000, 44090-ST-500, 1986. [publisher not identified], 1998.
Warning: These citations may not always be 100% accurate.