von Weizs�acker, Ernst U. <br/><br/>
Factor four :  doubling wealth - halving resource use : the new report to the Club of Rome / 
Ernst von Weizs�acker, Amory B. Lovins, and L. Hunter Lovins. 
 - London :  Earthscan Publications,  c1997. 
 - xxix, 322 p., [8] p. of plates :  ill. (some col.) ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>1853834068 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Energy conservation.<br/>Conservation of natural resources.<br/>Economic development.<br/>Power resources.