Caring for the earth :  a strategy for sustainable living / 
IUCN-The World Conservation Union, UNEP-United Nations Environment Programme and WWF-World Wide Fund For Nature. 
 - Switzerland. :  Gland,  1991. 
 - iv, 228 p.   ill. ;  27cm. 
<br/><br/> Includes bibliographical references. 
<br/><br/><label>ISBN: </label>2831700744 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sustainable Development.