University of Illinois Urbana-Champaign

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Thumbnail for Possible Geological-Geochemical Sources of Ammonium in Groundwater: Preliminary Results
Possible Geological-Geochemical Sources of Ammonium in Groundwater: Preliminary Results
Roy, William R.; Glessner, Justin J.G.; Krapac, Ivan G.; Larson, Timothy H.

Thumbnail for Does 6 x 8 = 56?
Does 6 x 8 = 56?
Trytten, Holly E.

Thumbnail for International Standards
International Standards
Havard-Williams, Peter

Thumbnail for Your family and economic security
Your family and economic security
Hafstrom, Jeanne L.; Dunsing, Marilyn M.