Dorril, S. (2002). M16: Inside the covert world of Her Majesty's secret intelligence service. New York: Simon & Schuster.
Lua i Stíl Chicago (17ú heag.)Dorril, Stephen. M16: Inside the Covert World of Her Majesty's Secret Intelligence Service. New York: Simon & Schuster, 2002.
Lua MLA (8ú heag.)Dorril, Stephen. M16: Inside the Covert World of Her Majesty's Secret Intelligence Service. New York: Simon & Schuster, 2002.
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