DeMers, Michael N. <br/><br/>
Fundamentals of geographic information systems / 
Michael N. Demer s 
 - 4th ed. 
 - New Jersey :  John Wiley,  2009 
 - xiii, 443 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780470129067 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems-- Textbooks
<br/><br/><label>Dewey Class. No.: </label>910.285