TY - BOOK TI - Microcomputer applications and concepts : WordPerfect 5.1, Lotus 1-2-3 release 2.2, and dBASE III PLUS SN - 0-07-054411-5 U1 - 001.642 Sa1m 1992 PB - Mitchell McGraw-Hill KW - Application software N1 - 001 Generalities ER -