Wolff Jurgen <br/><br/>
Focus 

 -  "Pearson Education Limited, UK"  2010 
 - 231 
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>9788131730775 
<br/><br/><label>Dewey Class. No.: </label>153.733  / WOL