Deitel, Harvey M.,  1945- <br/><br/>
an introcuction to operating system  [Book /] 
Harvey M Deitel. 
 - new york :  Addisan wesley publishing,  1990. 
 - 853 ;  20. 
<br/><br/><label>ISBN: </label>0201509393 
<br/><br/><label>Dewey Class. No.: </label>005.4320