Worth, Thomas. <br/><br/>
Cobol for beginners / 
Thomas Worth. 
 - Englewood Cliffs, N.J. :  Prnetice-Hall,  1977. 
 - 369 p. :  ill. 
<br/><br/><label>ISBN: </label>0131393782 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cobol (Computer program language).