Norton, Peter <br/><br/>
Peter Norton's DOS Guide 

 - rev. enl.ed. 
 - Delhi: Prentice-Hall  1989 
 - xvi,350  23 cm.  5p. 
<br/><br/><label>ISBN: </label>0876925931 
<br/><br/><label>Dewey Class. No.: </label>001.64404,  / NOR