Tim Duffy

51 books • 1 series

Mar 1, 1988
Cover of Four Software Tools with Lotus 1-2-3, WordPerfect, and dBASE III Plus

Four Software Tools with Lotus 1-2-3, WordPerfect, and dBASE III Plus (Wadsworth Series in Computer Information Systems)

Jan 1, 1987
Cover of Four Software Tools with Disc Operating System, V.P.-Planner and dBase III

Four Software Tools with Disc Operating System, V.P.-Planner and dBase III

Jan 1, 1986
Cover of Four Software Tools

Four Software Tools