Quality of telephone service
Subtitle: statistics for year April-March
By: British Telecom.
Contributors: British Telecom.
Publisher: British Telecom
Published: 1980
Place of publication: (London) ((Service and Performance Dept (THQ/SP1.2), 2 Gresham St., EC2V 7AG))
Language: eng
Number of pages: 15
Subjects: Telephone -- Great Britain -- Statistics.