Caring for the earth : a strategy for sustainable living / 

 - Gland :   International Union for Conservation of Nature (IUCN),  1991 
 - iv, 228 p 
<br/><br/><label>ISBN: </label>2831700744 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Protección ambiental<br/>Control de la contaminación ambiental
<br/><br/><label>Dewey Class. No.: </label>333.72 C277