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Google圖書搜尋
Galactic and Extragalactic Studies
Harlow Shapley
Rebecca Bradley Jones
其他書名
Note on latitude effect and radial gradients in the northern galactic hemisphere. X
出版
National Academy of Sciences
, 1940
URL
http://books.google.com.hk/books?id=ue2ytgAACAAJ&hl=&source=gbs_api