Telephony : a detailed exposition of the telephone exchange systems of the British Post Office. Vol. 2
Atkinson, J.
Telephony : a detailed exposition of the telephone exchange systems of the British Post Office. Vol. 2 (Book) - London Sir Isaac Pitman 1950 - 873 p. 26 cm.
Telephone--Great Britain
621.395 ATK / 10616
Telephony : a detailed exposition of the telephone exchange systems of the British Post Office. Vol. 2 (Book) - London Sir Isaac Pitman 1950 - 873 p. 26 cm.
Telephone--Great Britain
621.395 ATK / 10616