Introduction to geographic information systems 
Chang, Kang-tsung. 
 - 7th ed. 
 -  McGraw-Hill,  2014 
 - xviii, 425 p. 
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<br/><br/><label>ISBN: </label>978-1-25901061-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems.
<br/><br/><label>Dewey Class. No.: </label>910.185 C45625 2014