Erle, Schuyler <br/><br/>
Mapping hacks  tips & tools for electronic cartography 
Schuyler Erle 
 - Beijing  O'Reilly   2005 
 - xxxvi, 525p. 
<br/><br/><label>ISBN: </label>9780596007034 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic Information Systems.<br/>Digital mapping
<br/><br/><label>Dewey Class. No.: </label>506.0285 Er53m