Chang, Kang-tsung. <br/><br/>
Introduction to geographic information systems / 
Kang-tsung Chang. 
 - Fourth edition. 
 - xiv, 450 pages ;  24 cm.+CD-ROM. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>978-007-125920-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems.