Water pollution control in developing countries :  report. 

 - Geneva :  World Health Organization,  1968. 
 - 38p.:  ill. ;  24cm. 
 - World Health Organization Technical Report Series ;  no.404 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Pollution.<br/>Water Pollution--prevention & control.<br/>Sanitary Engineering--Methods.
<br/><br/><label>Dewey Class. No.: </label>616.9