Chang, Kang-tsung <br/><br/>
Introduction to geographic information systems / 
Kang-tsung Chang 
 - 6th ed. 
 - New York :  McGraw-Hill,  2012 
 - xiv, 418 p. :  ill., maps ;  24 cm. +  1 CD-ROM (4 3/4 in.) 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780077465438 0077465431 9780073369310 0073369314 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems