University of Illinois Urbana-Champaign

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Showing 6931–6960 of 14,038 items
Thumbnail for The role of Silurian bedrock reefs in the Lake Michigan lake trout fishery : final federal aid report
The role of Silurian bedrock reefs in the Lake Michigan lake trout fishery : final federal aid report
Holm, Nancy Peterson; Norby, Rodney D.; Smith, Lisa R.; Collinson, Charles

Thumbnail for Pleistocene stratigraphy of Illinois
Pleistocene stratigraphy of Illinois
Willman, Harold Bowen; Frye, John Chapman