APA (7th ed.) Citation

Hughes-Wilson, J. (2018). The secret state: A history of intelligence and espionage. Pegasus Books.

Chicago Style (17th ed.) Citation

Hughes-Wilson, John. The Secret State: A History of Intelligence and Espionage. New York ; London: Pegasus Books, 2018.

MLA (9th ed.) Citation

Hughes-Wilson, John. The Secret State: A History of Intelligence and Espionage. Pegasus Books, 2018.