diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst
index 6399ce7..9a65ada 100644
--- a/Doc/library/argparse.rst
+++ b/Doc/library/argparse.rst
@@ -4,9 +4,13 @@
 .. module:: argparse
    :synopsis: Command-line option and argument parsing library.
 .. moduleauthor:: Steven Bethard <steven.bethard@gmail.com>
-.. versionadded:: 3.2
 .. sectionauthor:: Steven Bethard <steven.bethard@gmail.com>
 
+**Source code:** :source:`Lib/argparse.py`
+
+.. versionadded:: 3.2
+
+--------------
 
 The :mod:`argparse` module makes it easy to write user friendly command line
 interfaces. The program defines what arguments it requires, and :mod:`argparse`
diff --git a/Doc/library/bdb.rst b/Doc/library/bdb.rst
index 1609c55..0737602 100644
--- a/Doc/library/bdb.rst
+++ b/Doc/library/bdb.rst
@@ -4,6 +4,10 @@
 .. module:: bdb
    :synopsis: Debugger framework.
 
+**Source code:** :source:`Lib/bdb.py`
+
+--------------
+
 The :mod:`bdb` module handles basic debugger functions, like setting breakpoints
 or managing execution via the debugger.
 
diff --git a/Doc/library/cgi.rst b/Doc/library/cgi.rst
index 8c75517..1e2498d 100644
--- a/Doc/library/cgi.rst
+++ b/Doc/library/cgi.rst
@@ -13,6 +13,10 @@
    single: URL
    single: Common Gateway Interface
 
+**Source code:** :source:`Lib/cgi.py`
+
+--------------
+
 Support module for Common Gateway Interface (CGI) scripts.
 
 This module defines a number of utilities for use by CGI scripts written in
diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index 4096cbb..4a92b05 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -12,7 +12,7 @@
    import itertools
    __name__ = '<doctest>'
 
-**Source code:** :source:`Lib/collections.py`
+**Source code:** :source:`Lib/collections.py` and :source:`Lib/_abcoll.py`
 
 --------------
 
diff --git a/Doc/library/colorsys.rst b/Doc/library/colorsys.rst
index 2cbc704..dbab706 100644
--- a/Doc/library/colorsys.rst
+++ b/Doc/library/colorsys.rst
@@ -5,6 +5,9 @@
    :synopsis: Conversion functions between RGB and other color systems.
 .. sectionauthor:: David Ascher <da@python.net>
 
+**Source code:** :source:`Lib/colorsys.py`
+
+--------------
 
 The :mod:`colorsys` module defines bidirectional conversions of color values
 between colors expressed in the RGB (Red Green Blue) color space used in
diff --git a/Doc/library/concurrent.futures.rst b/Doc/library/concurrent.futures.rst
index aeb792e..0cb170b 100644
--- a/Doc/library/concurrent.futures.rst
+++ b/Doc/library/concurrent.futures.rst
@@ -4,8 +4,13 @@
 .. module:: concurrent.futures
    :synopsis: Execute computations concurrently using threads or processes.
 
+**Source code:** :source:`Lib/concurrent/futures/thread.py`
+and :source:`Lib/concurrent/futures/process.py`
+
 .. versionadded:: 3.2
 
+--------------
+
 The :mod:`concurrent.futures` module provides a high-level interface for
 asynchronously executing callables.
 
diff --git a/Doc/library/html.entities.rst b/Doc/library/html.entities.rst
index aa67bae..239ae50 100644
--- a/Doc/library/html.entities.rst
+++ b/Doc/library/html.entities.rst
@@ -5,6 +5,9 @@
    :synopsis: Definitions of HTML general entities.
 .. sectionauthor:: Fred L. Drake, Jr. <fdrake@acm.org>
 
+**Source code:** :source:`Lib/html/entities.py`
+
+--------------
 
 This module defines three dictionaries, ``name2codepoint``, ``codepoint2name``,
 and ``entitydefs``. ``entitydefs`` is used to provide the :attr:`entitydefs`
diff --git a/Doc/library/html.parser.rst b/Doc/library/html.parser.rst
index e415700..8a0416e 100644
--- a/Doc/library/html.parser.rst
+++ b/Doc/library/html.parser.rst
@@ -9,6 +9,10 @@
    single: HTML
    single: XHTML
 
+**Source code:** :source:`Lib/html/parser.py`
+
+--------------
+
 This module defines a class :class:`HTMLParser` which serves as the basis for
 parsing text files formatted in HTML (HyperText Mark-up Language) and XHTML.
 
diff --git a/Doc/library/html.rst b/Doc/library/html.rst
index 2c42cf8..0063db6 100644
--- a/Doc/library/html.rst
+++ b/Doc/library/html.rst
@@ -6,6 +6,9 @@
 
 .. versionadded:: 3.2
 
+**Source code:** :source:`Lib/html/__init__.py`
+
+--------------
 
 This module defines utilities to manipulate HTML.
 
diff --git a/Doc/library/pyclbr.rst b/Doc/library/pyclbr.rst
index 11a0b6d..d4a76a6 100644
--- a/Doc/library/pyclbr.rst
+++ b/Doc/library/pyclbr.rst
@@ -5,6 +5,9 @@
    :synopsis: Supports information extraction for a Python class browser.
 .. sectionauthor:: Fred L. Drake, Jr. <fdrake@acm.org>
 
+**Source code:** :source:`Lib/pyclbr.py`
+
+--------------
 
 The :mod:`pyclbr` module can be used to determine some limited information
 about the classes, methods and top-level functions defined in a module.  The
diff --git a/Doc/library/runpy.rst b/Doc/library/runpy.rst
index 10e5ebc..f7c77f6 100644
--- a/Doc/library/runpy.rst
+++ b/Doc/library/runpy.rst
@@ -5,6 +5,9 @@
    :synopsis: Locate and run Python modules without importing them first.
 .. moduleauthor:: Nick Coghlan <ncoghlan@gmail.com>
 
+**Source code:** :source:`Lib/runpy.py`
+
+--------------
 
 The :mod:`runpy` module is used to locate and run Python modules without
 importing them first. Its main use is to implement the :option:`-m` command
diff --git a/Doc/library/shlex.rst b/Doc/library/shlex.rst
index 0bc99fd..03c9f98 100644
--- a/Doc/library/shlex.rst
+++ b/Doc/library/shlex.rst
@@ -8,6 +8,9 @@
 .. sectionauthor:: Eric S. Raymond <esr@snark.thyrsus.com>
 .. sectionauthor:: Gustavo Niemeyer <niemeyer@conectiva.com>
 
+**Source code:** :source:`Lib/shlex.py`
+
+--------------
 
 The :class:`shlex` class makes it easy to write lexical analyzers for simple
 syntaxes resembling that of the Unix shell.  This will often be useful for
diff --git a/Doc/library/symbol.rst b/Doc/library/symbol.rst
index 5134d47..75a4792 100644
--- a/Doc/library/symbol.rst
+++ b/Doc/library/symbol.rst
@@ -5,6 +5,9 @@
    :synopsis: Constants representing internal nodes of the parse tree.
 .. sectionauthor:: Fred L. Drake, Jr. <fdrake@acm.org>
 
+**Source code:** :source:`Lib/symbol.py`
+
+--------------
 
 This module provides constants which represent the numeric values of internal
 nodes of the parse tree.  Unlike most Python constants, these use lower-case
diff --git a/Doc/library/sysconfig.rst b/Doc/library/sysconfig.rst
index 773480b..1e89bd0 100644
--- a/Doc/library/sysconfig.rst
+++ b/Doc/library/sysconfig.rst
@@ -5,10 +5,15 @@
    :synopsis: Python's configuration information
 .. moduleauthor:: Tarek Ziade <tarek@ziade.org>
 .. sectionauthor:: Tarek Ziade <tarek@ziade.org>
-.. versionadded:: 3.2
 .. index::
    single: configuration information
 
+**Source code:** :source:`Lib/sysconfig.py`
+
+.. versionadded:: 3.2
+
+--------------
+
 The :mod:`sysconfig` module provides access to Python's configuration
 information like the list of installation paths and the configuration variables
 relevant for the current platform.
diff --git a/Doc/library/tabnanny.rst b/Doc/library/tabnanny.rst
index 549ce36..4f3e705 100644
--- a/Doc/library/tabnanny.rst
+++ b/Doc/library/tabnanny.rst
@@ -9,6 +9,10 @@
 
 .. rudimentary documentation based on module comments
 
+**Source code:** :source:`Lib/tabnanny.py`
+
+--------------
+
 For the time being this module is intended to be called as a script. However it
 is possible to import it into an IDE and use the function :func:`check`
 described below.
diff --git a/Doc/library/tarfile.rst b/Doc/library/tarfile.rst
index d578a79..9b7071b 100644
--- a/Doc/library/tarfile.rst
+++ b/Doc/library/tarfile.rst
@@ -8,6 +8,9 @@
 .. moduleauthor:: Lars Gustäbel <lars@gustaebel.de>
 .. sectionauthor:: Lars Gustäbel <lars@gustaebel.de>
 
+**Source code:** :source:`Lib/tarfile.py`
+
+--------------
 
 The :mod:`tarfile` module makes it possible to read and write tar
 archives, including those using gzip or bz2 compression.
diff --git a/Doc/library/tempfile.rst b/Doc/library/tempfile.rst
index 5caea67..1e0a31f 100644
--- a/Doc/library/tempfile.rst
+++ b/Doc/library/tempfile.rst
@@ -12,6 +12,10 @@
    pair: temporary; file name
    pair: temporary; file
 
+**Source code:** :source:`Lib/tempfile.py`
+
+--------------
+
 This module generates temporary files and directories.  It works on all
 supported platforms.  It provides three new functions,
 :func:`NamedTemporaryFile`, :func:`mkstemp`, and :func:`mkdtemp`, which should
diff --git a/Doc/library/timeit.rst b/Doc/library/timeit.rst
index 4a0b9c2..a03e40e 100644
--- a/Doc/library/timeit.rst
+++ b/Doc/library/timeit.rst
@@ -9,6 +9,10 @@
    single: Benchmarking
    single: Performance
 
+**Source code:** :source:`Lib/timeit.py`
+
+--------------
+
 This module provides a simple way to time small bits of Python code. It has both
 command line as well as callable interfaces.  It avoids a number of common traps
 for measuring execution times.  See also Tim Peters' introduction to the
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`
diff --git a/Doc/library/types.rst b/Doc/library/types.rst
index 7caecaf..d4a76b6 100644
--- a/Doc/library/types.rst
+++ b/Doc/library/types.rst
@@ -4,6 +4,9 @@
 .. module:: types
    :synopsis: Names for built-in types.
 
+**Source code:** :source:`Lib/types.py`
+
+--------------
 
 This module defines names for some object types that are used by the standard
 Python interpreter, but not exposed as builtins like :class:`int` or