Anon, Ellen, <br/><br/>
Photoshop CS4 for Nature Photographers : 

 -  Sybex,  2009. 
<br/><br/><label>ISBN: </label>9780470381274 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers.
<br/><br/><label>Dewey Class. No.: </label>778.930285  / ANO