BOOK Handbook of Programming Languages: Little Languages and Tools

This is volume 3 of the Handbook of Programming Languages series.

Series Editor in Chief: Peter Salus

Publisher: Macmillian

 Publication date: 1998
 Pages: 685
 Price: $50 US

Pages 331-406 is the coverage of Tcl, written by Cameron Laird. There's also a reference in the Python chapter to Tkinter.