University of Illinois Urbana-Champaign

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Showing 3451–3480 of 4,619 items
Thumbnail for Big Rivers area assessment
Big Rivers area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division

Thumbnail for Illinois Agricultural Pesticides Conference: summaries of presentations
Illinois Agricultural Pesticides Conference: summaries of presentations
University of Illinois at Urbana-Champaign. College of Agriculture Cooperative Extension Service

Thumbnail for Paving brick and paving brick clays of Illinois.
Paving brick and paving brick clays of Illinois.
Rolfe, Charles Wesley; Purdy, Ross C.; Talbot, Arthur Newell; Baker, Ira Osborn