University of Illinois Urbana-Champaign

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Showing 2851–2880 of 6,405 items
Thumbnail for Identification of Sources of Fecal Pollution of Karst Waters
Identification of Sources of Fecal Pollution of Karst Waters
Zheng, Y.; Kelly, W.R.; Panno, S.V.; Liu, W.-T.

Thumbnail for Water withdrawals in Illinois, 1982
Water withdrawals in Illinois, 1982
Kirk, James R.; Sanderson, Ellis W.; Visocky, A.P.; Sasman, Robert T.

Thumbnail for Development of a Geographic Information System for Natural Resources and Recreational Facilities
Development of a Geographic Information System for Natural Resources and Recreational Facilities
Szafoni, Diane L.; Greer, Diane; Hunter, Katherine; Bayley, Peter B.; Joselyn, Mark G.