Heywood, Ian. <br/><br/>
An introduction to geographical information systems / 
Ian Heywood, S. Cornelius, S. Carver. 
 - 3rd ed. 
 - Harlow, England ;  New York :  Pearson/Prentice Hall,  2006. 
 - xxxiii, 426 p. :  ill.(chiefly col.) ;  27 cm. 
<br/><br/> Prev. ed. : 2002. 
<br/><br/>Includes bibl. references and index. 
<br/><br/><label>ISBN: </label>0131293176(pbk) :  SR154.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems.
<br/><br/><label>Dewey Class. No.: </label>910.285  / H519 2006