University of Illinois Urbana-Champaign

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Showing 3361–3390 of 5,761 items
Thumbnail for Petroleum industry in Illinois, 1970. Part I. Oil and Gas Developments
Petroleum industry in Illinois, 1970. Part I. Oil and Gas Developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.

Thumbnail for The Structure of Basic Interests
The Structure of Basic Interests
Armstrong, Patrick Ian