Newsletter - Iowa Geological Survey.

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Item Link Original Source
Limited (search only)   NO1-3 The Ohio State University
Limited (search only)   v. 1-9 1976-1984 Purdue University
Limited (search only)   v.1(1976-1978) University of Illinois at Urbana-Champaign
Limited (search only)   no.3(1978) Rutgers University
Limited (search only)   1971-76 University of Illinois at Urbana-Champaign