APA (7th ed.) Citation

Sullivan. (2007). Gatekeeper: Memoirs of a CIA polymer examiner. Potomac Books.

Chicago Style (17th ed.) Citation

Sullivan. Gatekeeper: Memoirs of a CIA Polymer Examiner. Washington D.C: Potomac Books, 2007.

MLA (9th ed.) Citation

Sullivan. Gatekeeper: Memoirs of a CIA Polymer Examiner. Potomac Books, 2007.

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