Pollack Seymour. <br/><br/>
A Guide pl/i and structured programming. 

 - 3rd  ed. 
 - New york :  Holt,  1980. 
 - 646  p. :  ill ;    cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>programming.