Hickel, W. J. Klein, C. L. Dominick, D. D. <br/><br/>
Clean water for the 1970's  a status report 

 - U.S. Department of the Interior  US  1970 
 - 78p.  fig., ill., chart 
<br/><br/><label>Nat. Bib. No.: </label>3691 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Universal Decimal Class. No.: </label>628.19  / CLE