University of Illinois Urbana-Champaign

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Showing 61–90 of 231 items
Thumbnail for Mineral production in Illinois in 1955
Mineral production in Illinois in 1955
Voskuil, Walter Henry; Busch, Willis L.

Thumbnail for Mineral production in Illinois in 1956
Mineral production in Illinois in 1956
Busch, Willis L.; Voskuil, Walter Henry

Thumbnail for Children and metaphors
Children and metaphors
Vosniadou, Stella

Thumbnail for Year in review / 1999-07
Year in review / 1999-07
University of Illinois at Urbana-Champaign. Deptartment of Geology