Schildt, Herbert. <br/><br/>
DOS made easy / 
Herbert Schildt. 
 - Berkeley, Calif. :  Osborne McGraw-Hill,  c1988. 
 - xii, 286 p. :  ill. 
<br/><br/> "Covers PC-DOS and MS-DOS"--Cover.  Includes index. 
<br/><br/><label>ISBN: </label>007881295X   
<br/><br/><label>LCCN: </label>93023010     
<br/><br/><label>Subjects--Topical Terms: </label><br/>PC DOS (Computer operating system).<br/>MS-DOS (Computer operating system).