Showing 1 - 2 results of 2 for search '"Geological Survey circular ;"', query time: 0.16s Refine Results
  1. 1
    The 1987 estimate of undiscovered uranium endowment in solution-collapse breccia pipes in the Grand Canyon region of northern Arizona and adjacent Utah /
    Published 1990
    “...U.S. Geological Survey circular ;...”
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    Government Document Microform Book
  2. 2
    Assessment of undiscovered conventionally recoverable petroleum resources of the Arabian-Iranian basin : by Charles D. Masters, H. Douglas Klemme, and Anny B. Coury.
    by Masters, Charles D.
    Published 1982
    “...Geological Survey circular ;...”
    Government Document Microform Book
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