When Is Now? Experiments with Time and Timekeeping...

The Arithmetic Teacher 1981 / 11 Vol. 29; Iss. 3

When Is Now? Experiments with Time and Timekeeping Devicesby Henry Humphrey; Deirdre O'Meara-Humphrey

Review by: Dale G. Jungst
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Volume:
29
Language:
english
Journal:
The Arithmetic Teacher
DOI:
10.2307/41190002
Date:
November, 1981
File:
PDF, 330 KB
english, 1981
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