APA (7th ed.) Citation

Ousterhout, J. K. (1994). Tcl and the Tk toolkit. Addison-Wesley.

Chicago Style (17th ed.) Citation

Ousterhout, John K. Tcl and the Tk Toolkit. Reading, Mass: Addison-Wesley, 1994.

MLA (9th ed.) Citation

Ousterhout, John K. Tcl and the Tk Toolkit. Addison-Wesley, 1994.