Geological Survey, Wisconsin. Division of Highways, & Wisconsin Geological and Natural History Survey. (1986). Washington County, Wisconsin: 1:100 000-scale topographic map. Interior--Geological Survey ; For sale by Wisconsin Geological and Natural History Survey.
Chicago Style (17th ed.) CitationGeological Survey, Wisconsin. Division of Highways, and Wisconsin Geological and Natural History Survey. Washington County, Wisconsin: 1:100 000-scale Topographic Map. Reston, Va. : Madison, Wis.: Interior--Geological Survey ; For sale by Wisconsin Geological and Natural History Survey, 1986.
MLA (8th ed.) CitationGeological Survey, et al. Washington County, Wisconsin: 1:100 000-scale Topographic Map. Interior--Geological Survey ; For sale by Wisconsin Geological and Natural History Survey, 1986.