A multi-counter machine /
Wedi'i Gadw mewn:
| OCLC: | 20717192 |
|---|---|
| Prif Awdur: | |
| Iaith: | English |
| Cyhoeddwyd: |
Warszawa :
PKiN,
1973.
|
| Cyfres: | Prace CO PAN ;
v.124. |
| Fformat: | Monograph Note that CRL will digitize material from the collection when copyright allows. |