Heywood, Ian. <br/><br/>
Introduction to geographical information systems /  
by IAN Heywood, Sarah Cornelius and Steve Carver. 
 - 2nd ed /  
 - Delhi :   Pearson Education(Singapore) Pte. Ltd. ,   2002 
 - 295p ;  
<br/><br/><label>ISBN: </label>81-7808-982-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography
<br/><br/><label>Dewey Class. No.: </label>U  / P2