University of Illinois Urbana-Champaign

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Showing 811–840 of 916 items
Thumbnail for Agro-ecology / 1-6
Agro-ecology / 1-6
Submitter: Howard Ding

Thumbnail for Illinois farm economics. 171-200
Illinois farm economics. 171-200
University of Illinois at Urbana-Champaign. Extension Service in Agriculture and Home Economics

Thumbnail for Petroleum industry in Illinois, 1977. Part 1. Oil and gas developments
Petroleum industry in Illinois, 1977. Part 1. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.

Thumbnail for Spoon River area assessment
Spoon River area assessment
Submitter: Steven Mccauley

Thumbnail for Year-book for 1907.
Year-book for 1907.
Illinois State Geological Survey