How to Cite "Why would anybody think there might be life on another planet?" from CliffsNotes.com:

CliffsNotes.com. Why would anybody think there might be life on another planet?. 17 Sep 2014
<http://www.cliffsnotes.com/cliffsnotes/sciences/why-would-anybody-think-there-might-be-life-on-another-planet>.



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