Duffy, Tim. <br/><br/>
Four software tools with Lotus 1-2-3, Wordperfect and dBase III plus 
by Tim Duffy. 
 - Belmont  Wadsworth  1986 
 - xxiii,.601p.  incl. index 
 - Wads-Worth series in Computer Information Systems   .
<br/><br/><label>ISBN: </label>0534092101 
<br/><br/><label>Dewey Class. No.: </label>005.365  / N86