Wastes-solids, liquids and gases : a symposium   (Book) 

 - New York  Chemical Publishing  1974 
 - 432 p.  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage disposal--Congreses Sewage--Purification--Congresses
<br/><br/><label>Universal Decimal Class. No.: </label>628.54 WAS  / 11426