IBM corporation <br/><br/>
IBM CMS user's guide for cobol / 
IBM corporation 
 - 5th ed. 
 -  IBM Corporation,  1981 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cobol<br/>IBM CMS
<br/><br/><label>Dewey Class. No.: </label>001.642  / IBM