APA (7th ed.) Citation

Weinberg, P. N., & Groff, J. R. (1985). Understanding XENIX: A conceptual guide. Que Corp..

Chicago Style (17th ed.) Citation

Weinberg, Paul N., and James R. Groff. Understanding XENIX: A Conceptual Guide. Indianapolis: Que Corp., 1985.

MLA (9th ed.) Citation

Weinberg, Paul N., and James R. Groff. Understanding XENIX: A Conceptual Guide. Que Corp., 1985.