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  1. 1
    Manganese contents of some sedimentary rocks of Paleozoic Age in Virginia /
    by Force, Eric R.
    Published 1991
    Government Document Book
  2. 2
    The volcanogenic Mount Rogers formation and the overlying glaciogenic Konnarock formation : two late Proterozoic units in southwestern Virginia /
    by Rankin, Douglas W.
    Published 1993
    Government Document Book
  3. 3
    Manganese contents of some sedimentary rocks of Paleozoic Age in Virginia /
    by Force, Eric R., Cox, Leslie J.
    Published 1991
    Get full text
    Government Document eBook
  4. 4
    The volcanogenic Mount Rogers formation and the overlying glaciogenic Konnarock formation : two late Proterozoic units in southwestern Virginia /
    by Rankin, Douglas W.
    Published 1993
    Get full text
    Government Document eBook
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