More source links.
diff --git a/Doc/library/token.rst b/Doc/library/token.rst
index 991762f..4b98eac 100644
--- a/Doc/library/token.rst
+++ b/Doc/library/token.rst
@@ -5,6 +5,9 @@
:synopsis: Constants representing terminal nodes of the parse tree.
.. sectionauthor:: Fred L. Drake, Jr. <fdrake@acm.org>
+**Source code:** :source:`Lib/token.py`
+
+--------------
This module provides constants which represent the numeric values of leaf nodes
of the parse tree (terminal tokens). Refer to the file :file:`Grammar/Grammar`