Littleton, R. T., & Swenson, H. A. (1949). Geology and ground-water hydrology of the Angostura irrigation project, South Dakota. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationLittleton, Robert T., and Herbert A. Swenson. Geology and Ground-water Hydrology of the Angostura Irrigation Project, South Dakota. Washington, D.C.: United States Department of the Interior, Geological Survey, 1949.
MLA (9th ed.) CitationLittleton, Robert T., and Herbert A. Swenson. Geology and Ground-water Hydrology of the Angostura Irrigation Project, South Dakota. United States Department of the Interior, Geological Survey, 1949.
Warning: These citations may not always be 100% accurate.