Caring for the earth :   a strategy for sustainable living (summary) 

 - Gland :   International Union for Conservation of Nature (IUCN) :   United Nations Environment Programme (UNEP),  1991 
 - 24 p 
<br/><br/>Medio ambiente 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Control ambiental<br/>Protección del medio ambiente<br/>Ecodesarrollo