Heywood, Ian  . <br/><br/>
An introduction to geographical information systems /  
Ian Heywood, Sarah Cornelius and Steve Carver. 
 - 2nd ed /   . 
 - New Delhi :   Pearson Education  ,   1998 (rep.2001). 
 - xiii,279p. :   ill.,figs.,tables,plates ;   24cm .  
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>8178089823  Rs.  270.00 
<br/><br/><label>Subjects--Index Terms: </label>GEOGRAPHIC INFORMATION SYSTEMS 
<br/><br/><label>Dewey Class. No.: </label>910.01154  / HEY/I