University of Illinois Urbana-Champaign

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Showing 3121–3150 of 3,471 items
Thumbnail for Year-book for 1908
Year-book for 1908
Illinois State Geological Survey

Thumbnail for Imagining Our Future:  Preserving Pennsylvania's Collections
Imagining Our Future: Preserving Pennsylvania's Collections
Conservation Center for Art and Historic Artifacts

Thumbnail for Petroleum industry in Illinois, 1975. Part I. Oil and Gas Developments
Petroleum industry in Illinois, 1975. Part I. Oil and Gas Developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.