Keech, C. F., Dreeszen, V. H., & Rainwater, F. H. (1959). Geology and ground-water resources of Clay County, Nebraska. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationKeech, Charles Franklin, V. H. Dreeszen, and F. H. Rainwater. Geology and Ground-water Resources of Clay County, Nebraska. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1959.
MLA (9th ed.) CitationKeech, Charles Franklin, et al. Geology and Ground-water Resources of Clay County, Nebraska. United States Department of the Interior, Geological Survey, 1959.
Warning: These citations may not always be 100% accurate.