IBM disk operating system version 5.0  user's guide and reference /  [Book] : 
IBM. 
 - [Boca Raton, Fl. :  IBM,  1991. 
 - xx, 572 p. ;  23 cm. 
 - IBM personal computer software .
<br/><br/> All. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>IBM Personal Computer.
<br/><br/><label>Dewey Class. No.: </label>005.43076