Robins, Judd <br/><br/>
Mastering DOS 5 

 - 3rd ed. 
 - Singapore  Tech publications  1991 
 - xxx, 828 p.; 25cm. 
<br/><br/><label>ISBN: </label>9813005718 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating System