APA (7th ed.) Citation

Milne, I. (2014). Kim Philby: The unknown story of the KGB's master spy. Biteback Publ.

Chicago Style (17th ed.) Citation

Milne, Ian. Kim Philby: The Unknown Story of the KGB's Master Spy. London: Biteback Publ, 2014.

MLA (9th ed.) Citation

Milne, Ian. Kim Philby: The Unknown Story of the KGB's Master Spy. Biteback Publ, 2014.

Warning: These citations may not always be 100% accurate.