Robbins, Judd <br/><br/>
Mastering DOS 6.2 :  special ed / 
Judd Robbins. 
 - 2nd ed. 
 - Singapore :  Tech Pub,  c1994. 
 - xxxiv, 1018 p. : ill. 
<br/><br/> Includes appendices, glossary and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Opeating systems (Computer science)<br/>MS-DOS (Computer operating system)