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Measuring Time

Graham Dolan

出版	Heinemann-Raintree, 2001
主題	Juvenile Nonfiction / Concepts / Date & TimeJuvenile Nonfiction / Mathematics / General
ISBN	158810043X9781588100436
URL	http://books.google.com.hk/books?id=HWE6YGEs1ykC&hl=&source=gbs_api

註釋

Offers an introduction to the concept of time, covering timekeeping tools including calendars, clocks, and watches.