Erickson F. J. Fritz J. & Vonk J. A. John A. (1995). Computers Concepts, Implications and Applications with Windows 3.1, WordPerfect 6.0 for Windows, Quattro Pro 5.0 for Windows, and Paradox 4.5 for Windows. USA, Wm. C. Brown Communications, 1995.
Citación estilo ChicagoErickson F. J. Fritz J. and Vonk J. A. John A. Computers Concepts, Implications and Applications with Windows 3.1, WordPerfect 6.0 for Windows, Quattro Pro 5.0 for Windows, and Paradox 4.5 for Windows. USA, Wm. C. Brown Communications, 1995, 1995.
Cita MLAErickson F. J. Fritz J. and Vonk J. A. John A. Computers Concepts, Implications and Applications with Windows 3.1, WordPerfect 6.0 for Windows, Quattro Pro 5.0 for Windows, and Paradox 4.5 for Windows. USA, Wm. C. Brown Communications, 1995, 1995.