University of Illinois Urbana-Champaign

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Showing 6241–6270 of 28,711 items
Thumbnail for Nitrogen from the Atmosphere
Nitrogen from the Atmosphere
National Atmospheric Deposition Program

Thumbnail for Arms control: Half a loaf?
Arms control: Half a loaf?
Hadfield, Larry D.

Thumbnail for Practical Guide for Ground-water Sampling
Practical Guide for Ground-water Sampling
Barcelona, Michael J.; Gibb, James P.; Helfrich, John A.; Garske, Edward E.