Water quality of world river basins / 
UNEP. 
 - Nairobi :  United Nations Environment Programme,  1995. 
 - 40 p. :  col. ill., maps ;  26 cm. 
 - UNEP environment library ;   no. 14 .
<br/><br/>Includes bibliographical references (p. 38-39). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water quality.<br/>Watersheds.
<br/><br/><label>Dewey Class. No.: </label>363.73942