Haiduk, H. Paul INCREASING your productivity with perfect Version 5.1 Lotus 1-2-3 Release 2.2 dBASE III PLUS / by H.Paul Haiduk...[et al.] - New York Glencoe 1996 - Varied pages. ISBN: 002683071X ,0026830817 Dewey Class. No.: 5.365 / INC