University of Illinois Urbana-Champaign

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Showing 1–30 of 5,591 items
Thumbnail for The problem of knowledge acquisition
The problem of knowledge acquisition
Vosniadou, Stella; Brewer, William F.

Thumbnail for Glaciation and origin of the geest in the driftless area of northwestern Illinois
Glaciation and origin of the geest in the driftless area of northwestern Illinois
Willman, Harold Bowen; Frye, John Chapman; Glass, Herbert David