Chrisman Nicholas <br/><br/>
Exploring geographic information systems 
Chrisman Nicholas 
 - 2nd 
 - New York  John Wiley          1997 
 - xvi,298p  cm. 
<br/><br/> Bibliography: p 273-282 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>U:(D6,9(B)), N7;P2/TD3