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Fluorspar mining district, Cave-in-Rock and Shawnee National Forest, May 17-19, 1985

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By: Schuberth, Christopher J. - Cashatt, Everett D. - Illinois State Museum.

Publication info: Springfield, Ill, Illinois State Museum, Education Section, [1985]

Holding Institution: University Library, University of Illinois Urbana Champaign
A Combined East African geologic and wildlife safari : July 24-August 12, 1986

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By: Schuberth, Christopher J. - Illinois State Museum.

Publication info: [Springfield, Ill.], Illinois State Museum, [1986?]

Holding Institution: University Library, University of Illinois Urbana Champaign