Haiduk, H. Laby, L. Ross, P. Shuman, J. <br/><br/>
WordPerfect, Lotus 1-2-3, dBase III Plus 

<br/><br/><label>Subjects--Topical Terms: </label><br/><PROGRAMAS><WORDPERFECT 5.1><LOTUS 1-2-3 2.2><DBASE III PLUS><DISKETTE>