Microsoft MS-DOS :  users guide and reference / 
Microsoft 
 -  Microsoft,  c1987. 
 - xxi,350 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>LCCN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating systems (<br/>Computers)
<br/><br/><label>LC Class. No.: </label>QA76.76  / .O63M48918 1987 
<br/><br/><label>Dewey Class. No.: </label>055.446  / M582