Classification of the Wisconsinan stage in the Lake Michigan glacial lobe /

by Frye, John C., (John Chapman), 1912-1982
Published 1960

Mineral zonation of Woodfordian loesses of Illinois /

by Frye, John C., (John Chapman), 1912-1982
Published 1968

Mineralogy of glacial tills and their weathering profiles in Illinois /

by Willman, H. B. (Harold Bowen), 1901-
Published 1963

Mineralogy of glacial tills and their weathering profiles in Illinois ; Part I. Glacial tills /

by Willman, H. B. (Harold Bowen), 1901-, Glass, H. D. (Herbert David), Frye, John C., (John Chapman), 1912-1982
Published 1963

High-level glacial outwash in the driftless area of northwestern Illinois /

by Willman, H. B. (Harold Bowen), 1901-
Published 1969

Farmdalian lake deposits and faunas in northern Illinois /

by Willman, H. B. (Harold Bowen), 1901-
Published 1971

The Wisconsinan stage /

Published 1973