Earth summit agenda 21 :    the United Nations programme of action f rom Rio. 

 - New York :    United Nations,    1992. 
 - 294 p. ;    28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Sustainable development.<br/> Conservation of natural resources.
<br/><br/><label>Dewey Class. No.: </label>333.72 EAR