Busch, David D. <br/><br/>
PC MS DOS 4.0 for Hard Disk Users  

 - Toronto :   Bantam Books,   c1989 
 - XXIII, 389 p. 
<br/><br/>Includes Index 
<br/><br/><label>ISBN: </label>0553346008 
<br/><br/><label>ISSN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>MS-DOS Computer File<br/>PC-DOS Computer File
<br/><br/><label>Dewey Class. No.: </label>004.563  / BUS