University of Illinois Urbana-Champaign

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Showing 3451–3480 of 3,743 items
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Handbook of Illinois stratigraphy
Willman, Harold Bowen; Atherton, Elwood; Buschbach, T.C.; Collinson, Charles William; Frye, John Chapman; Hopkins, M.E.; Lineback, Jerry Alvin; Simon, Jack A.