APA (7th ed.) Citation

Borovik, G., & Knightley, P. (1994). The Philby files: The secret life of master spy Kim Philby. Little, Brown.

Chicago Style (17th ed.) Citation

Borovik, Genrikh, and Phillip Knightley. The Philby Files: The Secret Life of Master Spy Kim Philby. Boston [u.a.]: Little, Brown, 1994.

MLA (9th ed.) Citation

Borovik, Genrikh, and Phillip Knightley. The Philby Files: The Secret Life of Master Spy Kim Philby. Little, Brown, 1994.