APA (7th ed.) Citation

Posamentier, A. S., & Lehmann, I. (2004). Pi: A biography of the world's most mysterious number. Prometheus Books.

Chicago Style (17th ed.) Citation

Posamentier, Alfred S., and Ingmar Lehmann. Pi: A Biography of the World's Most Mysterious Number. Amherst, N.Y: Prometheus Books, 2004.

MLA (9th ed.) Citation

Posamentier, Alfred S., and Ingmar Lehmann. Pi: A Biography of the World's Most Mysterious Number. Prometheus Books, 2004.