Heywood, Ian <br/><br/>
Introduction to geographical information systems 

 - Delhi  Pearson Education  1998 
 - xiii, 279  Pb 
<br/><br/><label>ISBN: </label>81-7808-541-0 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>526