Telephony V.1: General principles and manual exchange systems ( A detailed exposition of the telephone exchange&
Atkinson, J
Telephony V.1: General principles and manual exchange systems ( A detailed exposition of the telephone exchange& - Sir Isaac Pitman, London 1948 - xii+499
621.382 ATK.1 `R'
Telephony V.1: General principles and manual exchange systems ( A detailed exposition of the telephone exchange& - Sir Isaac Pitman, London 1948 - xii+499
621.382 ATK.1 `R'
