Cita APA (7a ed.)

Ray, D. S., & Ray, E. J. (2006). Unix (3rd ed.). Peachpit Press.

Cita Chicago Style (17a ed.)

Ray, Deborah S., y Eric J. Ray. Unix. 3rd ed. Berkeley, Calif.: Peachpit Press, 2006.

Cita MLA (8a ed.)

Ray, Deborah S., y Eric J. Ray. Unix. 3rd ed. Peachpit Press, 2006.