Telephone engineer and management.
Telephone engineer and management.
- Chicago : Telephone engineer publishing Corp, 1955.
- v. : ilus ; 28 cm.
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V.59 No.1. V.59 No.2. V.59 No.3. V.59 No.4. V.59 No.5. V.59 No.6. V.58 No.7. V.59 No.8. V.59 No.9. V.59 No.10. V.59 No.11. V.59 No.12.