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Google圖書搜尋
The Nile Basin: (suppl. 3): Ten-day mean ... for the years 1938-1942 and normals for the period 1912-1942
Harold Edwin Hurst
P. Phillips
R. P. Black
出版
Government Press
, 1946
URL
http://books.google.com.hk/books?id=1NMSMBfPzQgC&hl=&source=gbs_api