Water:  The Power, Promise, and Turmoil of North America's Fresh Water /  Vol. 184 
William Graves 
 - Special ed. 
 - Washington :  National Geographic Society,  1993. 
 - 120 p.  Ill. 
 - 533.911.6 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water
<br/><br/><label>Dewey Class. No.: </label>533.911.6