Civilizations beyond earth  extraterrestrial life and society 
edited by Douglas A. Vakoch and A. A. Harrison 
 - New York  Berghahn Books  2011 
 - xii, 250p. 
<br/><br/><label>ISBN: </label>978-0-85745-211-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy-biological properties<br/>Earth
<br/><br/><label>Universal Decimal Class. No.: </label>52-37  / CIV