Added cross-references plus a note about dict & list shallow copying.
diff --git a/Doc/library/queue.rst b/Doc/library/queue.rst
index c7b65fd..0812b78 100644
--- a/Doc/library/queue.rst
+++ b/Doc/library/queue.rst
@@ -7,10 +7,11 @@
The :mod:`Queue` module implements a multi-producer, multi-consumer FIFO queue.
-It is especially useful in threads programming when information must be
+It is especially useful in threaded programming when information must be
exchanged safely between multiple threads. The :class:`Queue` class in this
module implements all the required locking semantics. It depends on the
-availability of thread support in Python.
+availability of thread support in Python; see the :mod:`threading`
+module.
The :mod:`Queue` module defines the following class and exception: