University of Illinois Urbana-Champaign

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Showing 4621–4650 of 4,658 items
Thumbnail for Metropolitan water supply allocation and operation
Metropolitan water supply allocation and operation
Hey, Donald L.; Gemmell, Robert S.

Thumbnail for Petroleum industry in Illinois, 1972. Part I. Oil and gas developments
Petroleum industry in Illinois, 1972. Part I. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.

Thumbnail for Illinois magazine. 11 (1920 - 1921)
Illinois magazine. 11 (1920 - 1921)
Submitter: William Ingram

Thumbnail for Engineering and legal aspects of land drainage in Illinois.
Engineering and legal aspects of land drainage in Illinois.
Pickels, George Wellington; Leonard, Frank Bonner, b. 1891.

Thumbnail for Petroleum industry in Illinois, 1977. Part 1. Oil and gas developments
Petroleum industry in Illinois, 1977. Part 1. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.

Thumbnail for Year-book for 1909
Year-book for 1909
Illinois State Geological Survey