登入選單

返回Google圖書搜尋

Astronomical Observations Made at the University Observatory Oxford: Researches in Stellar parallax by the aid of photography

University of Oxford. Observatory

出版	At the Clarendon Press, 1889
URL	http://books.google.com.hk/books?id=H045AQAAMAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN