Shafer, Dan. <br/><br/>
Practical smalltalk : using smalltalk 
by Dan Shafer and Dean A Ritz 
 - New York  Springer-Verlag  1991 
 - xx,233p. 
<br/><br/><label>ISBN: </label>038797394X 
<br/><br/><label>Dewey Class. No.: </label>005.133  / N918