APA (7th ed.) Citation

Le Carré, J. (1986). A perfect spy. Hodder & Stoughton.

Chicago Style (17th ed.) Citation

Le Carré, John. A Perfect Spy. London: Hodder & Stoughton, 1986.

MLA (8th ed.) Citation

Le Carré, John. A Perfect Spy. Hodder & Stoughton, 1986.