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1by Johnson, William D. (William David), 1923-, Kunkel, Robert P. (Robert Paul), 1926-“...Geological Survey bulletin ;...”
Published 1959
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2by Croft, M. G. (Mark G.), 1932-“...North Dakota. Geological Survey. Bulletin ;...”
Published 1970
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3by Carlson, C. G. (Clarence Gustav)“...North Dakota Geological Survey. Bulletin 56-pt. 1. County ground water studies 15-pt. 1...”
Published 1973
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4by Croft, M. G. (Mark G.), 1932-“...North Dakota Geological Survey. Bulletin 56, pt. 3...”
Published 1973
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