Barton, R.W..
Telex : A Detailed Exposition of the Telex System of the British Post Office / Barton R.W.. - London : Pitman, 1968. - VIII, 384 s.; 24 cm.
Telex : A Detailed Exposition of the Telex System of the British Post Office / Barton R.W.. - London : Pitman, 1968. - VIII, 384 s.; 24 cm.