University of Illinois Urbana-Champaign

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Showing 6541–6570 of 13,407 items
Thumbnail for Lake Michigan bibliography Volume 1
Lake Michigan bibliography Volume 1
Holm, Nancy Peterson; Morgan, Beth McArdle

Thumbnail for Petroleum industry in Illinois, 1971. Part I. Oil and gas developments
Petroleum industry in Illinois, 1971. Part I. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.