University of Illinois Urbana-Champaign

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Showing 301–330 of 7,844 items
Thumbnail for Regional Assessment of Northern Illinois Ground-water Resources
Regional Assessment of Northern Illinois Ground-water Resources
Nealon, John S.; Kirk, James R.; Visocky, Adrian P.

Thumbnail for The geology of zinc in coals of the Illinois Basin
The geology of zinc in coals of the Illinois Basin
Cobb, J.C.; Steele, J.D.; Treworgy, C.G.; Ashby, Jim F.; Russell, S.J.