University of Illinois Urbana-Champaign

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Showing 2941–2970 of 4,486 items
Thumbnail for The biologic digestion of garbage with sewage sludge
The biologic digestion of garbage with sewage sludge
Babbitt, Harold Eaton; Leland, Benn J.; Whitley, Fenner H.

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.