University of Illinois Urbana-Champaign

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Showing 6151–6180 of 7,206 items
Thumbnail for Petroleum industry in Illinois, 1971. Part I. Oil and gas developments
Petroleum industry in Illinois, 1971. Part I. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.

Thumbnail for Environmental Review of the Pacaya-Samiria National Reserve in Peru and Assessment of Project (527-0341)
Environmental Review of the Pacaya-Samiria National Reserve in Peru and Assessment of Project (527-0341)
Bayley, Peter B.; Vazquez R., Pedro; Ghersi P., Fernando; Soini, Pekka; Pinedo P., Mario