Geological Survey. (2010). Poplar quadrangle, Wisconsin: 7.5-minute series. U.S. Department of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationGeological Survey. Poplar Quadrangle, Wisconsin: 7.5-minute Series. Reston, Va.: U.S. Department of the Interior, U.S. Geological Survey, 2010.
MLA (8th ed.) CitationGeological Survey. Poplar Quadrangle, Wisconsin: 7.5-minute Series. U.S. Department of the Interior, U.S. Geological Survey, 2010.
Warning: These citations may not always be 100% accurate.