Geographical information system 
Geographical information system 
 -  "vi, 406 p. : ill. ; 21 cm., hbk." 
 - New Delhi  Global Vision Publishing House  2017 
<br/><br/><label>ISBN: </label>9788182208698 
<br/><br/><label>Dewey Class. No.: </label>910.285 HAR  / 22.910.285 HAR