Heywood, Ian. <br/><br/>
An introduction to geographical information systems / 

 - 3rd ed. 
 - India :  Pearson Education,  2010. 
 - xxxvi, 426 p. :  ill. ;  26 cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9788131731932 
<br/><br/><label>LC Class. No.: </label>24086-24090 
<br/><br/><label>Dewey Class. No.: </label>910.285  / HEY