APA (7th ed.) Citation

Webb, S. (2002). If the universe is teeming with aliens-- where is everybody?: Fifty solutions to the Fermi paradox and the problem of extraterrestrial life. Copernicus Books in association with Praxis Pub..

Chicago Style (17th ed.) Citation

Webb, Stephen. If the Universe Is Teeming with Aliens-- Where Is Everybody?: Fifty Solutions to the Fermi Paradox and the Problem of Extraterrestrial Life. New York: Copernicus Books in association with Praxis Pub., 2002.

MLA (9th ed.) Citation

Webb, Stephen. If the Universe Is Teeming with Aliens-- Where Is Everybody?: Fifty Solutions to the Fermi Paradox and the Problem of Extraterrestrial Life. Copernicus Books in association with Praxis Pub., 2002.