On python-dev Thomas Heller said these were committed
by mistake in rev 46693, so reverting this part of
rev 46693.
diff --git a/Doc/lib/lib.tex b/Doc/lib/lib.tex
index 5f357e3..0691179 100644
--- a/Doc/lib/lib.tex
+++ b/Doc/lib/lib.tex
@@ -245,6 +245,7 @@
 \input{libplatform}
 \input{liberrno}
 \input{libctypes}
+\input{libctypesref}
 
 \input{libsomeos}               % Optional Operating System Services
 \input{libselect}