University of Illinois Urbana-Champaign

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Showing 1–16 of 16 items
Thumbnail for Directory of Illinois mineral producers 1992
Directory of Illinois mineral producers 1992
Samson, Irma; Masters, John M.

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

Thumbnail for Directory of Illinois mineral producers 1974
Directory of Illinois mineral producers 1974
Malhotra, Ramesh; Smith, Portia Allyn