Fieldnotes from the State of Arizona, Bureau of Geology and Mineral Technology.

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Item Link Original Source
Limited (search only)   v.7:no.3/4;v.8-10;v.11:no.2-v.12:no.2 (1977-82) University of Minnesota
Limited (search only)   v.7:3-12:2(1977-1982) University of Illinois at Urbana-Champaign
Limited (search only)   v. 10-14 1980-1984 Purdue University
Limited (search only)   v. 15-17 1985-1987 Purdue University