Worth Thomas <br/><br/>
Cobol for beginners 
Worth Thomas 
 - New York  Prentice Hall USA         1977 
 - 369p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Science
<br/><br/><label>Dewey Class. No.: </label>D6,9(B), L7/TD3