登入選單
返回Google圖書搜尋
Sunspot Numbers, 1610-1985
其他書名
Based on "The Sunspot Activity in the Years 1610-1960"
出版World Data Center A for Solar-Terrestrial Physics, 1987
URLhttp://books.google.com.hk/books?id=SWdCAQAAIAAJ&hl=&source=gbs_api
EBookFULL_PUBLIC_DOMAIN