Kellert, Stephen R. <br/><br/>
Value of life  Biological diversity and human society 
by Stephen R Kellert 
 - Washington D.C.  Island press  1996 
 - xix, 263p. 
<br/><br/><label>ISBN: </label>1559633174 
<br/><br/><label>Dewey Class. No.: </label>179.1  / N96