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The North Magnetic Pole
E. Egeland
其他書名
The Importance of Roald Amundsen's Magnetic Field Observations 1903-1906
出版Fram Museum., 2000
ISBN82823505919788282350594
URLhttp://books.google.com.hk/books?id=oHnXvQEACAAJ&hl=&source=gbs_api