APA (7th ed.) Citation

Vaillant, G. E. (2008). Spiritual evolution: A scientific defense of faith. Broadway Books.

Chicago Style (17th ed.) Citation

Vaillant, George E. Spiritual Evolution: A Scientific Defense of Faith. New York: Broadway Books, 2008.

MLA (9th ed.) Citation

Vaillant, George E. Spiritual Evolution: A Scientific Defense of Faith. Broadway Books, 2008.

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