World in transition :  ways towards sustainable management of freshwater resources : annual report 1997 / 
German Advisory Council on Global Change 
 - 392 páginas :  ilustraciones 
<br/><br/><label>ISBN: </label>3540643516 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Política ambiental--Cooperación internacional
<br/><br/><label>LC Class. No.: </label>HC79.E5  / W67913 1997