Schmitz, Ruth. <br/><br/>
Using Dos 5.0 / 
Ruth Schmitz. 
 - New York :  Mitchell McGraw-Hill,  c1993. 
 - ix, 374 p. :  ill. ;  28 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0070568529 (pbk.) 0079114938 (text with 5 1/4" data disk) 0079114946 (text with 3 1/2" data disk) 
<br/><br/><label>LC Class. No.: </label>QA76.76.O63  / S3843 1993 
<br/><br/><label>Dewey Class. No.: </label>005.4/469