APA (7th ed.) Citation

Young, D. A. (1989). X window systems: Programming and applications with Xt. Prentice-Hall.

Chicago Style (17th ed.) Citation

Young, Douglas A. X Window Systems: Programming and Applications with Xt. Englewood Cliffs, N.J: Prentice-Hall, 1989.

MLA (9th ed.) Citation

Young, Douglas A. X Window Systems: Programming and Applications with Xt. Prentice-Hall, 1989.