University of Illinois Urbana-Champaign

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Showing 4561–4590 of 4,612 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 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.