Roy,  M.K.and Dastidar D. Ghosh <br/><br/>
Cobol programming 

 - New Delhi  Tata mcgraw hill publishing company limited  1991 
 - 309p. 
<br/><br/><label>ISBN: </label>*********** 
<br/><br/><label>Dewey Class. No.: </label>003.54             Roy. N1