Pinker, Steven  <br/><br/>
Better angels of our nature  the decline of violence in history and its causes 
Steven Pinker 
 - London  Penguin Books  2011 
 - xxviii, 802p. 
<br/><br/><label>ISBN: </label>9781846140945 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Violence--Psychological aspects<br/>Violence--Social aspects<br/>Violence
<br/><br/><label>Dewey Class. No.: </label>303.609 P6557b