APA (7th ed.) Citation

Posamentier, A. S. (2020). The joy of geometry. Prometheus.

Chicago Style (17th ed.) Citation

Posamentier, Alfred S. The Joy of Geometry. Lanham, MD: Prometheus, 2020.

MLA (8th ed.) Citation

Posamentier, Alfred S. The Joy of Geometry. Prometheus, 2020.

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