APA (7th ed.) Citation

Hunter. (1999). Spy hunter: Inside the FBI investigation of the walker espionage case. Airlife Publishing.

Chicago Style (17th ed.) Citation

Hunter. Spy Hunter: Inside the FBI Investigation of the Walker Espionage Case. England: Airlife Publishing, 1999.

MLA (8th ed.) Citation

Hunter. Spy Hunter: Inside the FBI Investigation of the Walker Espionage Case. Airlife Publishing, 1999.

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