Geographical information systems :  principles and applications / 
edited by David J. Maguire, Michael F. Goodchild, and David W. Rhind. 
 - New York :  Wiley,  c1991 [ Reprint 1993]. 
 - V. :  ill. ;  26 cm. 
<br/><br/>Vol. 1 Principles -- Vol. 2. Applications -- 
<br/><br/><label>ISBN: </label>0582056616 (Longman : set) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems.
<br/><br/><label>Dewey Class. No.: </label>910.285  / GEO 1991