Geographic information systems and science /  
Paul A. Longley, Michael F. Goodchild, David J. Maguire, David W. Rhind 
 - 2a. ed. 
 -  Wiley, 
 -  517 p. ; il. ; mapas ;    26 cm. 
<br/><br/><label>ISBN: </label>047087001X 
<br/><br/><label>Subjects--Index Terms: </label><br/>SISTEMAS DE INFORMACION GEOGRAFICOS 
<br/><br/><label>LC Class. No.: </label> / G 21 
<br/><br/><label>Universal Decimal Class. No.: </label>004:91