DeMers, Michael N. <br/><br/>
Fundamentals of geographic information systems / 
Michael N. DeMers 
 - 2nd edition. 
 - New York :  John Wiley & Sons, Inc.,  2000. 
 - 498 pages :  illustrations ;  26 cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780471314233 
<br/><br/><label>Subjects--Personal Names: </label><br/>Geographic information systems.