Proceedings of the 33rd Industrial Waste Conference, May 9, 10, 11, 1978, Purdue University Lafayette, Indiana. 

 - Ann Arbor :  Ann Arbor Science,  1979 
 - 1028 p. ;  26 cm. 
<br/><br/><label>ISBN: </label>0250402769 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Factory and trade waste--Congresses