Lo, C. P. <br/><br/>
Concepts and techniques of geographic information systems / 
C. P. Lo, Albert K. W. Yeung. 
 - 2nd  ed. 
 - Upper Saddle River, NJ. :  Pearson,  2007. 
 - xii, 532  p. 
<br/><br/><label>ISBN: </label>013149502x : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems.