APA (7th ed.) Citation

Kurtz, P. (1988). Forbidden fruit: The ethics of humanism. Prometheus Books.

Chicago Style (17th ed.) Citation

Kurtz, Paul. Forbidden Fruit: The Ethics of Humanism. Buffalo, NY: Prometheus Books, 1988.

MLA (8th ed.) Citation

Kurtz, Paul. Forbidden Fruit: The Ethics of Humanism. Prometheus Books, 1988.