Atkinson, J.
Telephony: a detailed exposition of the telephone exchange systems of the British post office / J.Atkinson - London Sir Isaac Pitman & Sons 1958 - 873 p.
Includes appendix and index.
133131
621.385 / ATK
Telephony: a detailed exposition of the telephone exchange systems of the British post office / J.Atkinson - London Sir Isaac Pitman & Sons 1958 - 873 p.
Includes appendix and index.
133131
621.385 / ATK