Telephone engineer and management.
Telephone engineer and management.
- Chicago : Telephone engineer publishing Corp, 1975.
- v. : ilus ; 28 cm.
V.79 No.1. V.79 No.2. V.79 No.3. V.79 No.5. V.79 No.6. V.79 No.8.
V.79 No.1. V.79 No.2. V.79 No.3. V.79 No.5. V.79 No.6. V.79 No.8.