APA (7th ed.) Citation

Hutchinson, S. E., Coulthard, G. J., & Schuler, C. (1995). Wordperfect 6.1 for windows. Irwin.

Chicago Style (17th ed.) Citation

Hutchinson, Sarah E., Glen J. Coulthard, and Catherine Schuler. Wordperfect 6.1 for Windows. Chicago: Irwin, 1995.

MLA (9th ed.) Citation

Hutchinson, Sarah E., et al. Wordperfect 6.1 for Windows. Irwin, 1995.