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1by Carpenter, DonaldSubjects: “...International Geophysical Year...”
Published 2008
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2by Bentley, Charles R.Subjects: “...International Geophysical Year...”
Published 2007
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3by Gow, Anthony JackSubjects: “...International Geophysical Year...”
Published 2006
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4by Aughenbaugh, Nolan B.Subjects: “...International Geophysical Year (IGY) (1957-1958)...”
Published 2005
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