APA (7th ed.) Citation

Scheifler, R. W., & Gettys, J. (1990). X window system: The complete reference to Xlib, X protocol, ICCCM, XLFD : X versión 11, release 4 (2nd ed.). Digital Press.

Chicago Style (17th ed.) Citation

Scheifler, Robert W., and James Gettys. X Window System: The Complete Reference to Xlib, X Protocol, ICCCM, XLFD : X Versión 11, Release 4. 2nd ed. Bedford, Massachusetts: Digital Press, 1990.

MLA (9th ed.) Citation

Scheifler, Robert W., and James Gettys. X Window System: The Complete Reference to Xlib, X Protocol, ICCCM, XLFD : X Versión 11, Release 4. 2nd ed. Digital Press, 1990.