APA (7th ed.) Citation

Welch, B. B., & Welch, B. (2003). Practical programming in Tcl/Tk (4th ed.). Prentice Hall/PTR.

Chicago Style (17th ed.) Citation

Welch, Brent B., and Brent Welch. Practical Programming in Tcl/Tk. 4th ed. Upper Saddle River, NJ: Prentice Hall/PTR, 2003.

MLA (9th ed.) Citation

Welch, Brent B., and Brent Welch. Practical Programming in Tcl/Tk. 4th ed. Prentice Hall/PTR, 2003.