Weizsacker, Ernst Von <br/><br/>
Factor four doubling wealth, halving resource use / 
Ernst Von Weizsacker 
 - London :  Earthscan Publications,  1998 
<br/><br/>Includes references & indexes. 
<br/><br/><label>ISBN: </label>9781853834066 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Factor four
<br/><br/><label>Dewey Class. No.: </label>628  / WEI