Neteler,Markus <br/><br/>
Open source GIS:a GRASS  GIS approach 

 - 3rd ed. 
 - New York  Springer  2008 
 - xix,406p.   
<br/><br/>   
<br/><br/><label>ISBN: </label>9780387357676 
<br/><br/><label>ISSN: </label>
<br/><br/><label>Subjects--Index Terms: </label>Geographic information systems  GRASS(Electronic computer system)  Open source software 
<br/><br/><label>Dewey Class. No.: </label>911:681.516