University of Illinois Urbana-Champaign

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Showing 661–690 of 977 items
Thumbnail for The Genera of Nearctic Therevidae
The Genera of Nearctic Therevidae
Irwin, Michael E.; Lyneborg, Leif

Thumbnail for Geology of the fluorspar deposits of Illinois
Geology of the fluorspar deposits of Illinois
Weller, James Marvin; Grogan, Robert Mann; Tippie, Frank Emerson, joint author