Guzdial, Mark, <br/><br/>
Squeak : 

 -  2001. 
 - 342 pages 
<br/><br/><label>ISBN: </label>9780130280282 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers.
<br/><br/><label>Dewey Class. No.: </label>006.76  / GUZ