Books by Byron J. Prugh:
Books in the extended shelves:
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Prugh, Byron J.: Depth and frequency of floods in Illinois (State of Illinois Dept. of Transportation], 1976), also by Geological Survey (U.S.) and Illinois. Division of Water Resources (page images at HathiTrust)- Prugh, Byron J.: Water quality in the Sugar Creek basin, Bloomington and Normal, Illinois (Dept. of the Interior, Geological Survey, 1978), also by Geological Survey (U.S.) (page images at HathiTrust)
Find more by Byron J. Prugh at your library, or elsewhere.