Ward, P. D. (2005). Life as we do not know it: The NASA search for (and synthesis of) alien life. Viking.
Style de citation Chicago (17e éd.)Ward, Peter D. Life as We Do Not Know It: The NASA Search for (and Synthesis of) Alien Life. New York: Viking, 2005.
Style de citation MLA (8e éd.)Ward, Peter D. Life as We Do Not Know It: The NASA Search for (and Synthesis of) Alien Life. Viking, 2005.
Attention : ces citations peuvent ne pas être correctes à 100%.