Cedergren, Harry R.. <br/><br/>
Seepage,drainage,and flow nets /  
by Harry R.Cedergren. 
 - Second Edn. /  
 - New York :   John Wiley & Sons,Inc. ,   1978 
 - xviii,534p :  
<br/><br/><label>ISBN: </label>0-471-14179-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth Science
<br/><br/><label>Dewey Class. No.: </label>HZ:52  / L7