Orton's Lightning calculator, and accountant's assistant.
Wedi'i Gadw mewn:
| OCLC: | 3164388 |
|---|---|
| Prif Awdur: | |
| Iaith: | English |
| Cyhoeddwyd: |
Philadelphia :
T.K. Collins,
1869, [c1866]
|
| Rhifyn: | Entirely new ed., |
| Pynciau: | |
| Fformat: | Monograph Note that CRL will digitize material from the collection when copyright allows. |
| Disgrifiad Corfforoll: | vi, [9]-194 p. 18 cm. |
|---|---|
| Cynulleidfa: | High School. |