OFTEL annual report 1992 : report of the Director General of Telecommunications: for the period 1 January to 31 December 1992 to the Secretary of State for Trade and Industry / ed. OFTEL
OFTEL annual report 1994 : report of the Director General of Telecommunications: for the period 1 January to 31 December 1994 to the Secretary of State for Trade and Industry / ed. OFTEL
Annual report 1995 / Post and Telecommunications Administration
Annual report 1996 / Post and Telecom Administration