Christakis, Nicholas A. and Fowler, James H.  <br/><br/>
Connected  : the surprising power of our social networks and how they shape our lives-how your friend's friend's friends affect everthing you feel, think, and do  
Christakis, Nicholas A. and Fowler, James H.  
 -  Back Bay Books  2009 
<br/><br/><label>Dewey Class. No.: </label>302.3  / T09 CHR.F