An edition of Number machines (1977)
Number machines
an introduction to the abacus, slide rule, and pocket calculator
By Forrest M. Mims
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Publish Date
1977
Publisher
McKay
Language
eng
Pages
54
Description:
Describes the development of the abacus, slide rule, and calculator and demonstrates their uses.
subjects: Slide-rule, Slide rule, Calculators, Abacus, Juvenile literature