Robbins Judd <br/><br/>
Mastering dos 6-0&6.2 

 - 2nd ed. 
 - New Delhi  BPB publications   1994 
 - xxv,1018 
<br/><br/><label>ISBN: </label>8170293138 
<br/><br/><label>Dewey Class. No.: </label>681.3.066  / ROB