APA (7th ed.) Citation

Barrett, Collins, & Lenzer. (2006). Grand illusion: The untold story of Rudy Giuliani and 9/11. HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Barrett, Collins, and Lenzer. Grand Illusion: The Untold Story of Rudy Giuliani and 9/11. New York: HarperCollins Publishers, 2006.

MLA (8th ed.) Citation

Barrett, et al. Grand Illusion: The Untold Story of Rudy Giuliani and 9/11. HarperCollins Publishers, 2006.

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