Welch, B. B. [ca. 2003]. Practical programming in Tcl/Tk : Includes index. In Safari Tech Books Online (4 th ed) [Cd]. Upper Saddle River, NJ: Prentice Hall/PTR.
ISO-690 (author-date, English)WELCH, Brent B., 2003. Practical programming in Tcl/Tk : Includes index. 4 th ed. Upper Saddle River, NJ: Prentice Hall/PTR. ISBN 0130385603.
Modern Language Association 9th editionWelch, B. B. „Practical programming in Tcl/Tk : Includes index“. Safari Tech Books Online, 4 th ed, cd, Prentice Hall/PTR, 2003.
Mohr Siebeck - Recht (Deutsch - Österreich)Welch, Brent B.: Practical programming in Tcl/Tk : Includes index, 4 th ed. Aufl. Upper Saddle River, NJ 2003.
Emerald - HarvardWelch, B.B. (2003), Practical programming in Tcl/Tk : Includes index, Safari Tech Books Online, 4 th ed., Bd. , Prentice Hall/PTR, Upper Saddle River, NJ.