Norton, Peter. <br/><br/>
Perter Norton`s Dos Guide updated to cover 6.2 /  

 - 6th ed. /  
 - New Delhi-110 001 :   Prentice-Hall of India ,   1985 
 - xxiv,744p ;  
<br/><br/><label>ISBN: </label>81-203-0934-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating systems
<br/><br/><label>Dewey Class. No.: </label>BV  / N4;3