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  1. 1
    Economic geology of the Rincon pegmatites, San Diego County, California /
    by Hanley, John Bernard, 1913-
    Published 1951
    Book
  2. 2
    Economic geology of the Darwin quadrangle : Inyo County, California /
    by Hall, Wayne E., 1920-
    Published 1958
    Book
  3. 3
    Economic geology of the French Gulch quadrangle : Shasta and Trinity Counties, California /
    Book
  4. 4
    Industrial minerals in California : economic importance, present availability, and future development /
    Published 1990
    Government Document Book
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