Telephone lines and their properties,
Wedi'i Gadw mewn:
| OCLC: | 3659274 |
|---|---|
| Prif Awdur: | |
| Iaith: | English |
| Cyhoeddwyd: |
New York,
Longmans, Green,
1894.
|
| Rhifyn: | New ed., rev. and enl. |
| Pynciau: | |
| Fformat: | Monograph Note that CRL will digitize material from the collection when copyright allows. |