APA (7th ed.) Citation

Hedges, L. S. (1987). Geology of Walworth County, South Dakota. Science Center, University of South Dakota, Department of Water and Natural Resources.

Chicago Style (17th ed.) Citation

Hedges, Lynn S. Geology of Walworth County, South Dakota. Vermillion: Science Center, University of South Dakota, Department of Water and Natural Resources, 1987.

MLA (9th ed.) Citation

Hedges, Lynn S. Geology of Walworth County, South Dakota. Science Center, University of South Dakota, Department of Water and Natural Resources, 1987.