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The Greenwich Guide to Day and Night

Graham Dolan

出版	Heinemann Library, 2001
主題	Juvenile Nonfiction / Concepts / Date & TimeJuvenile Nonfiction / Science & Nature / GeneralJuvenile Nonfiction / Science & Nature / Earth Sciences / General
ISBN	15881004219781588100429
URL	http://books.google.com.hk/books?id=_CPey0VQVdEC&hl=&source=gbs_api

註釋

Explains how the rotation of the Earth causes the cycle of day and night.