University of Illinois Urbana-Champaign

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Showing 9931–9960 of 81,966 items
Thumbnail for Measuring oil reserves by injected gas
Measuring oil reserves by injected gas
Squires, Frederick, b. 1879.

Thumbnail for Application of Nitrogen and Oxygen Isotopes to Identify Sources of Nitrate, 2001
Application of Nitrogen and Oxygen Isotopes to Identify Sources of Nitrate, 2001
Roadcap, George S.; Hackley, Keith C.; Hwang, Hue-Hwa; Johnson, Thomas M.

Thumbnail for Fish Indicators of Ecosystem Health: Upper Mississippi River System
Fish Indicators of Ecosystem Health: Upper Mississippi River System
Anderson, Alison M.; Casper, Andrew F.; McCain, Kathryn N.S.