Duffy, Tim. <br/><br/>
Four software tools, with Lotus 1-2-3, 2.2 / 
by Tim Duffy. 
 - Belmont, Calif. :  Wadsworth Publishing Company,  1990. 
 - Various pagination. 
 - Wadsworth Series in Computer Information Systems. .
<br/><br/> Includes index.  DOS for IBM PC and MS DOS, word processing using WordPerfect 4.2 and 5.0, spreadsheets using Lotus 1-2-3 release 2.2, database management using dBASE III Plus. 
<br/><br/><label>ISBN: </label>0534135242 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PC DOS (Computer operating system).<br/>MS-DOS (Computer operating system).<br/>WordPerfect (Computer program).<br/>Lotus 1-2-3 (Computer program).<br/>dBASE III PLUS (Computer program).