Water pollution control and abatement Ed. Willrich and Hines 

 - Ames  IOWA Iowa state University Press U.S.A     1967 
 - 194  cm. 
<br/><br/><label>Standard No.: </label>37 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>D854(Z), K7