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  1. 1
    The Conterminous United States Mineral Assessment Program : background information to accompany folio of geologic, geochemical, geophysical, and mineral resource maps of the Ajo and Lukeville 1 by 2 quadrangles, Arizona /
    Published 1992
    “...U.S. Dept. of the Interior, U.S. Geological Survey ; Books and Open-File Report Sales,...”
    Government Document Book
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