APA (7th ed.) Citation

230061 Bennett, J. O., Shostak, G. S., & Jakosky, B. M. (2003). Life in the universe. San Francisco, CA : Addison Wesley.

Chicago Style (17th ed.) Citation

230061 Bennett, Jeffrey O., G. Seth Shostak, and Bruce M. Jakosky. Life in the Universe. San Francisco, CA : Addison Wesley, 2003.

MLA (9th ed.) Citation

230061 Bennett, Jeffrey O., et al. Life in the Universe. San Francisco, CA : Addison Wesley, 2003.