APA (7th ed.) Citation

Lewis, J. R. (2003). Encyclopedic sourcebook of UFO religions. Prometheus Books.

Chicago Style (17th ed.) Citation

Lewis, James R. Encyclopedic Sourcebook of UFO Religions. Amherst, NY: Prometheus Books, 2003.

MLA (9th ed.) Citation

Lewis, James R. Encyclopedic Sourcebook of UFO Religions. Prometheus Books, 2003.

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