University of Illinois Urbana-Champaign

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Showing 1–30 of 157 items
Thumbnail for Illinois mineral industry in 1975
Illinois mineral industry in 1975
Samson, Irma; Dingwell, Amy G.

Thumbnail for Directory of Illinois mineral producers 1992
Directory of Illinois mineral producers 1992
Samson, Irma; Masters, John M.

Thumbnail for Anna Morgan: Reader, Teacher, and Director
Anna Morgan: Reader, Teacher, and Director
Sozen, Joyce Lorraine Chalcraft

Thumbnail for ISGS Geonews
ISGS Geonews
Illinois State Geological Survey