Water quality monitoring in the Asian and Pacific region 
United Nations 
 - New York :  United Nations,  1990. 
 - vii,327p. :  ill. ;  30cm. 
 - Water resourses; 67 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water quality<br/>Measurent Asia<br/>Water analysis
<br/><br/><label>LC Class. No.: </label>QTO TD367.W383