Lien, David A.. <br/><br/>
Includes DOS 4.0 MS-DOS : the basic course /  
David A. Lien. 
 - New Delhi :   C B S Publishers and Distributors ,   1989 rep.1992. 
 - xv,155p. :   figs,tables, ;   22cm .  
<br/><br/>NULL 
<br/><br/><label>ISBN: </label>8123901283  Rs. 50.00 
<br/><br/><label>Subjects--Index Terms: </label>OPERATING SYSTEMS (COMPUTERS) MS-DOS 
<br/><br/><label>Dewey Class. No.: </label>005.432M4  / LIE/I