University of Illinois Urbana-Champaign

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Showing 4471–4500 of 5,739 items
Thumbnail for Effective discharges of Illinois streams
Effective discharges of Illinois streams
Crowder, David W.; Knapp, H. Vernon

Thumbnail for Engineering and legal aspects of land drainage in Illinois.
Engineering and legal aspects of land drainage in Illinois.
Pickels, George Wellington; Leonard, Frank Bonner, b. 1891.