Davey, William B. <br/><br/>
Conservation districts and 208 water quality management / 
by William B. Davey 
 - Washington, D. C. :  United States printing office,  [???] 
 - xiii, 349 p. :  ill., chart, maps ;  28 cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water quality management--United States<br/>Water quality--United States
<br/><br/><label>Dewey Class. No.: </label>628.160973