Cromley, Robert G. <br/><br/>
Digital cartography, Robert G. Cromley, eng 

 - New Jersey, Prentice-Hall, US  1992 
 - xi,317p.  22cm 
<br/><br/><label>ISBN: </label>013710930X 
<br/><br/><label>Dewey Class. No.: </label>526,  / D, cro