University of Illinois Urbana-Champaign

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Showing 7501–7530 of 16,046 items
Thumbnail for Illinois mineral industry in 1941
Illinois mineral industry in 1941
Voskuil, Walter Henry; Stevens, Douglas F.; Oliver, G.N.

Thumbnail for Humic substances removal by activated carbon
Humic substances removal by activated carbon
Lee, Michael C.-Y.; Snoeyink, Vernon L.