Bernhardsen, Tor <br/><br/>
Geographic information systems : an introduction 

 - 3 
 - New Delhi  John Wiley  2002 
 - xiii, 428p.   
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>8126511389 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems(<br/>GIS)