APA (7th ed.) Citation

Ward, P. D. (2005). Life as we do not know it: The NASA search for (and synthesis of) alien life (1. publ.). Viking.

Chicago Style (17th ed.) Citation

Ward, Peter D. Life as We Do Not Know It: The NASA Search for (and Synthesis of) Alien Life. 1. publ. New York: Viking, 2005.

MLA (9th ed.) Citation

Ward, Peter D. Life as We Do Not Know It: The NASA Search for (and Synthesis of) Alien Life. 1. publ. Viking, 2005.