University of Illinois Urbana-Champaign

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Showing 841–870 of 1,509 items
Thumbnail for Illinois birds, Wood warblers
Illinois birds, Wood warblers
Graber, Jean Weber; Kirk, Ethelyn L.; Graber, Richard Rex

Thumbnail for Oil and gas development in Illinois in 1942
Oil and gas development in Illinois in 1942
Bell, Alfred Hannam; Carter, Charles William

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.

Thumbnail for Illinois crop protection technology conference: Proceedings
Illinois crop protection technology conference: Proceedings
University of Illinois at Urbana-Champaign. College of Agricultural, Consumer, and Environmental Sciences. Cooperative Extension Service

Thumbnail for Washability tests of Illinois coals
Washability tests of Illinois coals
Callen, Alfred Copeland; Mitchell, David Ray