APA (7th ed.) Citation

Flanagan, D. (1991). Programmer's supplement for release 5 of the X Window System version 11 (1. pr., R 5 update.). O'Reilly.

Chicago Style (17th ed.) Citation

Flanagan, David. Programmer's Supplement for Release 5 of the X Window System Version 11. 1. pr., R 5 update. Sebastopol, Calif: O'Reilly, 1991.

MLA (9th ed.) Citation

Flanagan, David. Programmer's Supplement for Release 5 of the X Window System Version 11. 1. pr., R 5 update. O'Reilly, 1991.