TY - BOOK AU - Shelly,Gary B. TI - Learning to use WordPerfect 5.0/5.1, Lotus 1-2-3 and dBASE III Plus PY - 1990/// CY - Boston PB - Boyd & Fraser Pub KW - WordPerfect (Computer program) KW - Lotus 1-2-3 (Computer program) KW - dBASE III Plus (Computer file) KW - Word processing KW - Business computer programs KW - Data base management N1 - Includes indices ER -