APA (7th ed.) Citation

Halamka, J. D. (1984). Real world UNIX: Managing a business with the UNIX operating system. SYBEX.

Chicago Style (17th ed.) Citation

Halamka, John D. Real World UNIX: Managing a Business with the UNIX Operating System. Berkeley [Calif.]: SYBEX, 1984.

MLA (9th ed.) Citation

Halamka, John D. Real World UNIX: Managing a Business with the UNIX Operating System. SYBEX, 1984.