APA Citation

Vail III, K. E., & Routledge, C. The science of religion, spirituality, and existentialism.

Chicago Style Citation

Vail III, Kenneth E., and Clay Routledge. The Science of Religion, Spirituality, and Existentialism.

MLA Citation

Vail III, Kenneth E., and Clay Routledge. The Science of Religion, Spirituality, and Existentialism.

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