Gehm, Harry W. and Bregman, Jacob I. <br/><br/>
Hand Book of Wate Resourcr and Pollution Control 

 - New York  Van Nostrand Reinhold Company  1976 
 - 840 
<br/><br/><label>ISBN: </label>0442210418 
<br/><br/><label>Subjects--Personal Names: </label> Social Work 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social Work