Models for water quality management 
/[by] Michael Overman 
 - London  McGraw-Hill  1981 
 - xiv; 348p. 
<br/><br/> 	Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water quality management
<br/><br/><label>Dewey Class. No.: </label>628.1  / MOD