University of Illinois Urbana-Champaign

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Showing 1561–1590 of 2,006 items
Thumbnail for Petrographic and coking characteristics of coal : laboratory study of Illinois coal seams nos. 5 and 6
Petrographic and coking characteristics of coal : laboratory study of Illinois coal seams nos. 5 and 6
Marshall, Charles Edward; Harrison, John A.; Simon, Jack A.; Parker, Margaret A.

Thumbnail for Agro-ecology / 1-6
Agro-ecology / 1-6
Submitter: Howard Ding