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Ethiopic Astronomy and Computus

Otto Neugebauer

出版	Red Sea Press, 2016
主題	Reference / GeneralScience / Space Science / Astronomy
ISBN	15690244059781569024409
URL	http://books.google.com.hk/books?id=7TW3DAEACAAJ&hl=&source=gbs_api

註釋

The only detailed work for the English reader on the astronomical/calendar aspect of the Book of Enoch, which determines when Easter will be celebrated by the by the Ethiopian Tewahido Orthodox Church.