World conservation strategy:   living resource conservation for sustainable development 
International Union for the Conservation of Nature and Natural Resources 
 - Gland  IUCN  1980 
 - various pagings  ill  30cm. 
<br/><br/><label>ISBN: </label>2880321018 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conservation of natural resources
<br/><br/><label>LC Class. No.: </label>IRA S942.15