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Arctic regions -- Discovery and exploration -- Interviews
2
1957-1958 -- Interviews
1
Arctic Institute of North America
1
Harley D. -- Interviews
1
International Geophysical Year
1
International Geophysical Year (IGY) (1957-1958)
1
John E. -- Interviews
1
Nygren
1
Sater
1
United States. National Oceanic and Atmospheric Administration -- History
1
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