Cita APA (7a ed.)

(1981). The interception of communications in Great Britain: Pres. to Parliament by the Prime Minister of Her Majesty, March 1981. H.M.S.O.

Cita Chicago Style (17a ed.)

The Interception of Communications in Great Britain: Pres. to Parliament by the Prime Minister of Her Majesty, March 1981. London: H.M.S.O, 1981.

Cita MLA (9a ed.)

The Interception of Communications in Great Britain: Pres. to Parliament by the Prime Minister of Her Majesty, March 1981. H.M.S.O, 1981.