Control of water pollution  a survey of existing legislation 
World Health Organization 
 - Geneva  World Health Organization  1967 
 - 210 s.  res., tbl.  24 cm. 
<br/><br/>Kaynakça var. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water pollution.
<br/><br/><label>Dewey Class. No.: </label>352.6 CON 1967