Devoney, Chris <br/><br/>
Using PC DOS 

 - 2nd 
 - Singapore  Tech Publications  1987 
<br/><br/><label>ISBN: </label>981-3091-73-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating systems (Computers)
<br/><br/><label>Dewey Class. No.: </label>005.43  / DEV