HEYWOOD , IAN . <br/><br/>
AN INTRODUCTION TO GEOGRAPHICAL INFORMATION SYSTEMS 

 - 3RD. 
 - SOUTH ASIA:  DORLING KINDERSLAY,  2009. 
 - 287:  21CM. 
<br/><br/><label>Subjects--Index Terms: </label>Geography & travel 
<br/><br/><label>Dewey Class. No.: </label>910 HEY