Walton, William C. <br/><br/>
Numerical ground water modeling: flow and contaminant migration /William C. Walton 

 - Chelsea  Lewis  1989 
 - ix, 272p  incl. 3 disks 
 - National Water Well Association .
<br/><br/><label>ISBN: </label>0873711963 
<br/><br/><label>Dewey Class. No.: </label>551.49  / N892