Cita APA (7th ed.)

Quercia, V., & O'Reilly, T. (1993). X Window system user's guide OSF motif 1.2 edition. O'Reilly.

Cita Chicago (17th ed.)

Quercia, Valerie, i Tim O'Reilly. X Window System User's Guide OSF Motif 1.2 Edition. Sebastopol: O'Reilly, 1993.

Cita MLA (9th ed.)

Quercia, Valerie, i Tim O'Reilly. X Window System User's Guide OSF Motif 1.2 Edition. O'Reilly, 1993.