APA (7th ed.) Citation

Asente, P. J., Swick, R. R., & McCormack, J. (1990). X Window system toolkit: The complete programmer's guide and specification. Digital Press.

Chicago Style (17th ed.) Citation

Asente, Paul J., Ralph R. Swick, and J. McCormack. X Window System Toolkit: The Complete Programmer's Guide and Specification. Rockport, MA: Digital Press, 1990.

MLA (9th ed.) Citation

Asente, Paul J., et al. X Window System Toolkit: The Complete Programmer's Guide and Specification. Digital Press, 1990.