Willis, Robert,   1946- <br/><br/>
Groundwater systems planning and management / 
Robert Willis and W illiam W-G. Yeh. 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  c1987. 
 - xiii, 416 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0133656519 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Groundwater-- Management-- Mathematical models.<br/>Groundwater-- Quality-- Mathematical models.<br/>Groundwater flow-- Mathematical models.
<br/><br/><label>Dewey Class. No.: </label>333.910415