Chang, Kang-tsung. <br/><br/>
Introduction to geographic information systems / 
Kang-tsung Chang. 
 - 7th edition. 
 - Boston: :  McGraw Hill Higher Education,  c2014. 
 - xviii, 425p. ;  23cm. 
<br/><br/><label>ISBN: </label>9780077805401 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geo information system.<br/>Geographic information systems.