Bernhardsen, Tor <br/><br/>
Geographic information systems   An introduction  Paper 

 - 2nd ed 
 - New York  John Wiley  1999 
 - xv, 372p 
<br/><br/> Bibliography: P 362-64 
<br/><br/><label>ISBN: </label>0-471-32192-3   
<br/><br/><label>Dewey Class. No.: </label>910  / BER