APA (7th ed.) Citation

Twigge, S. R., & Hampshire, E. (2008). British intelligence: Secrets, spies and sources (1. publ.). <<The>> National Archives.

Chicago Style (17th ed.) Citation

Twigge, Stephen Robert, and Edward Hampshire. British Intelligence: Secrets, Spies and Sources. 1. publ. Kew: <<The>> National Archives, 2008.

MLA (9th ed.) Citation

Twigge, Stephen Robert, and Edward Hampshire. British Intelligence: Secrets, Spies and Sources. 1. publ. <<The>> National Archives, 2008.