Aronoff, Stan <br/><br/>
Geographic information systems :  a management perspective / 
Stan Aronoff 
 - Ottawa, Canada :  WDL Publications,  1989 
 - 294 p. :  ill. ;  25 cm 
<br/><br/>References : p. 278-279 
<br/><br/><label>ISBN: </label>0921804911 
<br/><br/><label>LCCN: </label>92-191627 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems