Norton, Peter . <br/><br/>
Peter Norton`s DOS guide updated to cover 6.2 /   Textual Documents 
Peter Norton. 
 - New Delhi :   Prentice Hall ,   2001. 
 - NULL ;   NULL. 
<br/><br/><label>Subjects--Index Terms: </label>DOS 
<br/><br/><label>Dewey Class. No.: </label>005.432DOS  / NOR