Cita APA

Thomas, R. (1985). A user guide to the UNIX system (2nd ed.). National Book Store.

Citación estilo Chicago

Thomas, Rebecca. A User Guide to the UNIX System. 2nd ed. Manila: National Book Store, 1985.

Cita MLA

Thomas, Rebecca. A User Guide to the UNIX System. 2nd ed. National Book Store, 1985.

Warning: These citations may not always be 100% accurate.