Grupe, Fritz H. <br/><br/>
Microcomputer applications :  using WordPerfect 5.0, Lotus 1-2-3, and dBase III Plus / 
Fritz H. Grupe. 
 - Dubuque, IA :  W.C. Brown,  c1990. 
 - ix, 399 p. :  ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>LCCN: </label>89061046  
<br/><br/><label>LC Class. No.: </label>QA76.6 .G78534 1990  / .G78534 1990 
<br/><br/><label>Dewey Class. No.: </label>005.365