APA (7th ed.) Citation

Singh, S., & Lynch, J. (1997). Fermat's enigma: The epic quest to solve the world's greatest mathematical problem. Walker.

Chicago Style (17th ed.) Citation

Singh, Simon, and John Lynch. Fermat's Enigma: The Epic Quest to Solve the World's Greatest Mathematical Problem. New York: Walker, 1997.

MLA (8th ed.) Citation

Singh, Simon, and John Lynch. Fermat's Enigma: The Epic Quest to Solve the World's Greatest Mathematical Problem. Walker, 1997.