Richardson, Ronny. <br/><br/>
MS-DOS utility programs :  add-on software resources / 
Ronny Richardson. 
 - Blue Ridge Summit, PA :  Windcrest,  c1989. 
 - xix, 665 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>LCCN: </label>90031187     
<br/><br/><label>Subjects--Topical Terms: </label><br/>MS-DOS (Computer operating system)<br/>Utilities (Computer programs)