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The Story of Clocks and Calendars : Marking a Millennium by Betsy Maestro, Betsy Maestro
The Story of Clocks and Calendars : Marking a Millennium
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Betsy Maestro, Betsy Maestro

The Story of Clocks and Calendars : Marking a Millennium

Betsy Maestro, Betsy Maestro

48 pages • 1999

nonfiction mathematics science challenging informative lighthearted medium-paced
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