APA (7th ed.) Citation

Posamentier, A. S., & Lehmann, I. (2012). The glorious golden ratio. Prometheus Books.

Chicago Style (17th ed.) Citation

Posamentier, Alfred S., and Ingmar Lehmann. The Glorious Golden Ratio. Amherst, N.Y.: Prometheus Books, 2012.

MLA (9th ed.) Citation

Posamentier, Alfred S., and Ingmar Lehmann. The Glorious Golden Ratio. Prometheus Books, 2012.