Hutchinson, Sarah E. <br/><br/>
DOS 6 / 
S.E. Hutchinson, S.C. Sawyer, G.J. Coulthard. 
 - Burr Ridge :  Irwin,  1994. 
 - 209 p. 
 - Advantage Series for Computer Education .
<br/><br/><label>ISBN: </label>025615791X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operation Systems