The abacus: its history, its design, its possibilities in the modern world / Parry Moon.
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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 pages : illustrations ; 24 cm |
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| Bibliography: | Includes bibliographical references and index. |
| ISBN: | 0677019602 9780677019604 0677019653 9780677019659 |