Wilson, David Sloan  <br/><br/>
Unto others :   the evolution and psychology of unselfish behavior/ 
David Sloan Wilson 
 - Cambridge, Mass.:  Harvard University Press,   1998 
 - 394 p. :   ill. ;   24 cm. 
<br/><br/><label>ISBN: </label>97806749304760674930479 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Altruism.Altruisme.Altruismus.
<br/><br/><label>LC Class. No.: </label>BF637.H4   / .S65 1998