University of Illinois Urbana-Champaign

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Showing 421–450 of 3,433 items
Thumbnail for Economic and Geologic Papers
Economic and Geologic Papers
Nebel, M.L.; Savage, Thomas Edmund; Culver, Harold E.; Bretz, J Harlen; Currier, Louis W.

Thumbnail for The Chemistry of Soil Humic Acids
The Chemistry of Soil Humic Acids
Savage, Scott Maxfield