The abacus: its history, its design, its possibilities in the modern world
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| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
New York,
Gordon and Breach Science Publishers
[1971]
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| Subjects: |
| Physical Description: | vii, 179 p. illus. 24 cm. |
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| Bibliography: | Includes bibliographical references. |
| ISBN: | 0677019602 0677019653 (pbk.) |