The history of the abacus
Saved in:
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
London,
Hutchinson,
1968.
|
| Subjects: |
| Item Description: | Facsims. on lining papers. |
|---|---|
| Physical Description: | xiii, 127 p. illus., facsims. 22 cm. |
| Bibliography: | Bibliography: p. 116-120. |
| ISBN: | 090894103 |