Toward a cleaner aquatic environment 
Kenneth M. Mackenthun. 
 - Washington  U.S. Govt. Print. Off.  1973. 
 - xvii, 273 p.  illus. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>73603276  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Pollution--United States.<br/>Water quality management--United States.
<br/><br/><label>LC Class. No.: </label>TD223  / .M315 
<br/><br/><label>Dewey Class. No.: </label>628.1/688