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Showing 1 - 2 results of 2 for search '"international"', query time: 0.31s Refine Results
  1. 1
    by Rubin, Morton J.
    Published 2007
    Subjects: “...International Geophysical Year...”
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  2. 2
    by Wessbecher, Howard O.
    Published 2008
    Subjects: “...International Geophysical Year (IGY) (1957-1958)...”
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