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Schneider, Edward D. (1985) Questions about the beginning of life . Minneapolis: Augsburg Pub. House

Bier, Ethan (2000) How life begins / Ethan Bier. New York: Cold Spring harbor Laboratory Press

Prager, Ellen J (2000) The oceans/ Ellen J. Prager with Sylvia A. Earle. New York: McGraw-Hill

 www.chem.duke.edu/~jds/cruise_chem/Exobiology/sites.html  

http://www.accessexcellence.org/WN/SUA05/origin.html

http://www.historyoftheuniverse.com/origlife.htm

http://movieweb.com/movie/missiontomars/