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International Geophysical Year
International Geophysical Year
period of international collaboration in the Earth sciences (1957-58)
en-GB
/ˌɪntəˈnæʃənəl ˌd͡ʒɪəˈfɪzɪkl jɜː/
en-US
/ˌɪntɚˈnæʃənɑl ˌd͡ʒioʊˈfɪzəkəl ˈjɪɹ/
Categories:
International Year
research program