Norton, Peter,  1943- <br/><br/>
Peter Norton's DOS guide / 
Peter Norton. 
 - 3rd ed. 
 - New York, N.Y. :  Brady :  Distributed by Prentice Hall,  c1989. 
 - xi, 408 p. 
<br/><br/><label>ISBN: </label>013662636X (paper) 
<br/><br/><label>LCCN: </label>90023123     
<br/><br/><label>Subjects--Topical Terms: </label><br/>MS-DOS (Computer operating system)<br/>PC DOS (Computer operating system)