West, N. (1987). A matter of trust: MI5 ; 1945 - 72 (Coronet ed., 6. impr.). Hodder and Stoughton.
Cita Chicago Style (17a ed.)West, Nigel. A Matter of Trust: MI5 ; 1945 - 72. Coronet ed., 6. impr. London: Hodder and Stoughton, 1987.
Cita MLA (8a ed.)West, Nigel. A Matter of Trust: MI5 ; 1945 - 72. Coronet ed., 6. impr. Hodder and Stoughton, 1987.
Precaución: Estas citas no son 100% exactas.