登入選單
返回Google圖書搜尋
Observations with the Meridian Photometer During the Years 1879-82
Edward Charles Pickering
出版J. Wilson and Son, 1884
URLhttp://books.google.com.hk/books?id=HJctAQAAMAAJ&hl=&source=gbs_api
EBookFULL_PUBLIC_DOMAIN