Showing 1 - 2 results of 2 for search 'Schaeffer, O A', query time: 0.01s Refine Results
  1. 1
    Potassium argon dating
    by Schaeffer, O A
    Published 1966
    Printed Book
  2. 2
    Potassium Argon dating
    by Schaeffer,O.A. and Zahringer,J
    Published 1966
    Printed Book
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