Water [and] pollution control 

 - Don Mills, Ontario :  Southam Business Publications Ltd.,  1965-1985 
 - v. 
<br/><br/><label>ISSN: </label>0043-1117 
 = Water [and] pollution control 
 = Water pollut. control 
<br/><br/><label>Subjects--Topical Terms: </label><br/>AGUA<br/>TRATAMIENTO DEL AGUA<br/>CALIDAD DEL MEDIO AMBIENTE<br/>AGUAS RESIDUALES<br/>RECURSOS DE AGUA
<br/><br/><label>Universal Decimal Class. No.: </label>628