Heywood, Ian <br/><br/>
Introduction to geographical information systems   
by Ian Heywood, Sarah Cornenlius and Steve Carver 
 - 2nd 
 - singapore  Pearson Education  2003 
 - xv,295p. 
<br/><br/><label>ISBN: </label>8178089823 
<br/><br/><label>Dewey Class. No.: </label>910.285  / P031 R(T)