Todd, J. E., & Geological Survey. (1908). Elk Point folio, South Dakota-Nebraska-Iowa. U.S. Geological Survey.
Chicago Style (17th ed.) CitationTodd, J. E., and Geological Survey. Elk Point Folio, South Dakota-Nebraska-Iowa. Washington, D.C.: U.S. Geological Survey, 1908.
MLA (8th ed.) CitationTodd, J. E., and Geological Survey. Elk Point Folio, South Dakota-Nebraska-Iowa. U.S. Geological Survey, 1908.
Warning: These citations may not always be 100% accurate.