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Time Systems and standards -- See Also Frequency standards


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2 Time -- Systems and standards.   11
3 Time -- Systems and standards -- Canada : The beginning of the long dash : a history of timekeeping in Canada / Malcolm M. Thomson  1978 1
4 Time -- Systems and standards -- Great Britain. : Review of British Standard Time  1970 1
5 Time -- Systems and standards -- History. : The global transformation of time : 1870-1950 / Vanessa Ogle  2015 1
6 Time -- Systems and standards -- Juvenile literature. : When it's six o'clock in San Francisco : a trip through time zones / by Cynthia Jaynes Omololu ; illustrated by Randy DuBurke  2009 1
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