University of Illinois Urbana-Champaign

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Showing 3991–4020 of 4,222 items
Thumbnail for Fox River area assessment
Fox River area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

Thumbnail for Sangamon State University catalog, 1975-1976
Sangamon State University catalog, 1975-1976
Sangamon State University, Office of University Relations

Thumbnail for Petroleum industry in Illinois, 1972. Part I. Oil and gas developments
Petroleum industry in Illinois, 1972. Part I. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.