Assessment of freshwater quality :  report on the results of the WHO/UNEP programme on the health-related environmental monitoring. 

 - S.L. :  United Nations Environment Programme,  1985. 
 - 80 p. :  ill. ;  29 cm. 
<br/><br/>Includes bibliography. 
<br/><br/> Open access. 
<br/><br/><label>LCCN: </label>89980801  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water quality.<br/>Water--Pollution.