Compendium of the technical recommendations
Subtitle: issued by C.C.I.F., C.C.I.T. and C.C.I.R. of the International Telecommunications Union
By: compiled by A.C. Timmis; edited by W.A. Phillips.
Contributors: Timmis, A C.; Phillips, W A.; International Telecommunication Union.
Publisher: Automatic Telephone & Electric Co.
Place of publication: Liverpool
Language: eng