Allen, David W. <br/><br/>
Getting to know ArcGIS :  modelbuilder / 
 Geographic information systems 
David W. Allen 
 - Redlands, CA :  Esri Press,  c2011 
 - viii, 320 p. :  col. ill., col. maps ;  23 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781589482555 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems<br/>Graphical user interfaces (Computer systems)