Cita APA (7th ed.)

Thomas, R., & Yates, J. (1982). A user guide to the UNIX system. OSBORNE/McGraw-Hill.

Cita Chicago (17th ed.)

Thomas, Rebecca, i Jean Yates. A User Guide to the UNIX System. Berkeley, Calif.: OSBORNE/McGraw-Hill, 1982.

Cita MLA (8th ed.)

Thomas, Rebecca, i Jean Yates. A User Guide to the UNIX System. OSBORNE/McGraw-Hill, 1982.