Sheldon, Thomas. <br/><br/>
Introduction PC-DOS and MS-DOS /  
by Thomas Sheldon. 
 - New York :   McGraw-Hill ,   1989. 
 - ix, 402p. :   diagrams ;   24cm .  
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0070565651  USD 37.50 
<br/><br/><label>Subjects--Index Terms: </label>OPERATING SYSTEMS 
<br/><br/><label>Dewey Class. No.: </label>005.446  / SHE/I