Grady, C P Leslie. et. al. <br/><br/>
Biological wastewater treatment   
by C P Leslie Grady et. al. 
 - 2nd 
 - New York  Marcel Dekker, Inc  1999 
 - xii, 1076p. 
<br/><br/><label>ISBN: </label>0824789199 
<br/><br/><label>Dewey Class. No.: </label>628.35  / N99