University of Illinois Urbana-Champaign

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Showing 2371–2400 of 2,452 items
Thumbnail for Handbook of Illinois stratigraphy
Handbook of Illinois stratigraphy
Willman, Harold Bowen; Atherton, Elwood; Buschbach, T.C.; Collinson, Charles William; Frye, John Chapman; Hopkins, M.E.; Lineback, Jerry Alvin; Simon, Jack A.

Thumbnail for Transactions of the Board of Trustees [electronic resource] / 1990-92
Transactions of the Board of Trustees [electronic resource] / 1990-92
University of Illinois (System). Board of Trustees

Thumbnail for Vermilion River area assessment
Vermilion River area assessment
Illinois Department of Natural Resources

Thumbnail for Transactions of the Board of Trustees [electronic resource] / 2000-02
Transactions of the Board of Trustees [electronic resource] / 2000-02
University of Illinois (System). Board of Trustees

Thumbnail for Upper Rock River area assessment
Upper Rock River area assessment
Illinois Department of Natural Resources, Office of Scientific Research; Illinois Department of Natural Resources, Illinois State Water Survey