Cita APA (7a ed.)

(1992). SCO UNIX Operating system: User's Guide (1a. ed.). SCO USA.

Cita Chicago Style (17a ed.)

SCO UNIX Operating System: User's Guide. 1a. ed. SCO USA, 1992.

Cita MLA (8a ed.)

SCO UNIX Operating System: User's Guide. 1a. ed. SCO USA, 1992.