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Studies of Venus-transits. An Investigation of the Circumstances of the Transits of Venus in 1874 and 1882 Originally Forming Part of 'The Universe and Coming Transits.'.
Richard Anthony Proctor
出版Longmans, Green and Company, 1882
URLhttp://books.google.com.hk/books?id=pOJusJWeRFUC&hl=&source=gbs_api
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