VM/370 operations  operating DOS/VSE under VM/370 I0043 study guide 
IBM 
 - White Plains, N.Y.  International Business Machines Corporations  1978 
 - 101p. in various pagings ill. 30cm. 
<br/><br/> 'Operator training library'  'Independent study program'  'SR20-7220-1' 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Virtual computer systems<br/>Electronic digital computers--Programming