Todd, P. (2004). Global intelligence: The world's secret services today. Books for Change, Zed.
Cita Chicago (17th ed.)Todd, Paul. Global Intelligence: The World's Secret Services Today. New Delhi: Books for Change, Zed, 2004.
Cita MLA (9th ed.)Todd, Paul. Global Intelligence: The World's Secret Services Today. Books for Change, Zed, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.