SPC digital telephone exchanges
| Prif Awdur: | |
|---|---|
| Awdur Corfforaethol: | |
| Awduron Eraill: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
London, U.K.
Peter Peregrinus on behalf of the Institution of Electrical Engineers
c1990.
|
| Cyfres: | IEE telecommunications series
21 |
| Pynciau: |


