Ackerman, E.A. <br/><br/>
Technology in American water development / 
E.A.  Ackerman & George O.G. Lof 
 - Baltimore :  Hopkins ,  1959 
 - xv, 710p. ;  26 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural resources--United States<br/>Technology<br/>Water
<br/><br/><label>Dewey Class. No.: </label>333.91  / ACK