Close, Kenneth S. <br/><br/>
MS-DOS and PC-DOS :  a handbook of essentials / 
Kenneth S. Close. 
 - Cincinnati :  South-Western Pub. Co.,  1989. 
 - 246 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0538800925 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MS-DOS (Computer operating system).<br/>PC DOS (Computer operating system).