Jensen, John R.,  1949- <br/><br/>
Introductory geographic information systems / 
John R. Jensen, Ryan R. Jensen. 
 - Boston :   Pearson,  2013 . 
 - xxvi, 400 pages :  illustrations (some.color) ;  28 cm. 
 - Pearson series in geographic information science .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780136147763 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems.