APA (7th ed.) Citation

Libes, D., & Ressler, S. (1989). Life with UNIX: A guide for everyone. Prentice Hall PTR.

Chicago Style (17th ed.) Citation

Libes, Don, and Sanford Ressler. Life with UNIX: A Guide for Everyone. Englewood Cliffs, N.J: Prentice Hall PTR, 1989.

MLA (9th ed.) Citation

Libes, Don, and Sanford Ressler. Life with UNIX: A Guide for Everyone. Prentice Hall PTR, 1989.