Cita APA (7a ed.)

Bach, M. J. The Design of the Unix Operating System (01st.). Pearson.

Cita Chicago Style (17a ed.)

Bach, Maurice J. The Design of the Unix Operating System. 01st. New Delhi: Pearson.

Cita MLA (9a ed.)

Bach, Maurice J. The Design of the Unix Operating System. 01st. Pearson.