Cita APA (7a ed.)

Wilkinson, L., Hill, M. A., Miceli, S., Howe, P., & Vang, E. (1992). Systat: Getting started. Systat.

Cita Chicago Style (17a ed.)

Wilkinson, Leland, Mary Ann Hill, Stacey Miceli, Patricia Howe, y Erin Vang. Systat: Getting Started. Evanston: Systat, 1992.

Cita MLA (9a ed.)

Wilkinson, Leland, et al. Systat: Getting Started. Systat, 1992.