Cita APA (7th ed.)

Osborne, A. (1981). Using the Unix System. Osborne/McGraw-Hill.

Cita Chicago (17th ed.)

Osborne, Adam. Using the Unix System. Berkeley, CA: Osborne/McGraw-Hill, 1981.

Cita MLA (9th ed.)

Osborne, Adam. Using the Unix System. Osborne/McGraw-Hill, 1981.