Tim Duffy

51 books • 1 series

Jun 1, 1993
Cover of Soft Tool Kit Quattro Pro 4.0Duffy T

Soft Tool Kit Quattro Pro 4.0Duffy T

Jan 1, 1993
Cover of Essential Windows 3.1

Essential Windows 3.1

Jan 1, 1993
Cover of Essential Quattro Pro 4.0

Essential Quattro Pro 4.0

Jan 1, 1993
Cover of Essential PARADOX 3.5

Essential PARADOX 3.5

Dec 1, 1992
Cover of Software Tool Kit

Software Tool Kit

Oct 1992
Cover of Hands-on WORDPERFECT

Hands-on WORDPERFECT

Jan 1, 1992
Cover of Computing Concepts with Four Software Tools

Computing Concepts with Four Software Tools

Jan 1, 1992
Cover of Essential DOS 5.0

Essential DOS 5.0

Jan 1, 1992
Cover of Essential dBase III Plus

Essential dBase III Plus

Jan 1, 1992
Cover of Computing Concepts

Computing Concepts

Jan 1, 1992
Cover of Essential WordPerfect 5.0/5.1

Essential WordPerfect 5.0/5.1

Jan 1, 1992
Cover of Essential dBase IV, Version 1.1

Essential dBase IV, Version 1.1

Jan 1, 1992
Cover of Essential Lotus 1-2-3

Essential Lotus 1-2-3

Jan 1, 1992
Cover of Essential DOS 3.0

Essential DOS 3.0

Dec 12, 1991
Cover of Four Software Tools with WORDPERFECT 5.0 and 5.1, Lotus 1-2-3 2.2 and dBase III Plus

Four Software Tools with WORDPERFECT 5.0 and 5.1, Lotus 1-2-3 2.2 and dBase III Plus

Nov 1, 1991
Cover of Cuatro Herramientas de Software Plus

Cuatro Herramientas de Software Plus

Jul 1, 1991
Cover of Hands-on dBase IV

Hands-on dBase IV

Feb 1, 1991
Cover of Four Software Tools with WORDPERFECT 5.0 and 5.1, Lotus 1-2-3 2.2 and dBase IV

Four Software Tools with WORDPERFECT 5.0 and 5.1, Lotus 1-2-3 2.2 and dBase IV

Dec 31, 1990
Cover of Four Software Tools with WORDPERFECT 4.2 and 5.0, dBase III Plus and Lotus 1-2-3 Release 2.2

Four Software Tools with WORDPERFECT 4.2 and 5.0, dBase III Plus and Lotus 1-2-3 Release 2.2

Sep 1, 1990
Cover of Four Software Tools with Disc Operating System, WORDSTAR, Lotus 1-2-3 and dBase III Plus

Four Software Tools with Disc Operating System, WORDSTAR, Lotus 1-2-3 and dBase III Plus

Feb 1, 1990
Cover of Hands-on dBase III Plus

Hands-on dBase III Plus

Jan 1, 1990
Cover of Hands-on WORDSTAR 5.5

Hands-on WORDSTAR 5.5

Dec 12, 1989
Cover of Four Software Tools Plus dBase III Plus, V.P.-Planner Plus and WORDPERFECT 4.2

Four Software Tools Plus dBase III Plus, V.P.-Planner Plus and WORDPERFECT 4.2

1 Feb 1990
Cover of Hands-on Lotus 1-2-3

Hands-on Lotus 1-2-3