University of Illinois Urbana-Champaign

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Showing 4051–4080 of 67,263 items
Thumbnail for Sidestream elevated pool aeration (SEPA) stations : effects on in-stream dissolved oxygen
Sidestream elevated pool aeration (SEPA) stations : effects on in-stream dissolved oxygen
Butts, Thomas A.; Shackleford, Dana B.; Bergerhouse, Thomas R.

Thumbnail for 50 ways farmers can protect their groundwater / 1324
50 ways farmers can protect their groundwater / 1324
Simmons, F. William; Giles, Ed; Peterson, Doug

Thumbnail for Illinois farm economics. 71-100
Illinois farm economics. 71-100
University of Illinois at Urbana-Champaign. Extension Service in Agriculture and Home Economics