%%
%% The LaTeX Companion, 2ed (second printing August 2004)
%%
%% Example 2-4-3 on page 68.
%%
%% Copyright (C) 2004 Frank Mittelbach, Michel Goossens,
%%    Johannes Braams, David Carlisle, and Chris Rowley
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%%
%% See http://www.latex-project.org/lppl.txt for details.
%%

\documentclass{ttctexa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{231.0pt}
\addtolength\textwidth{-60pt}
\StartShownPreambleCommands
\usepackage{showkeys}
\StopShownPreambleCommands
\begin{document}
\section{An example}\label{sec}
Section~\ref{sec} shows the use of the
\texttt{showkeys} package with a
reference to equation~(\ref{eq}).
\begin{equation}
   a = b \label{eq}
\end{equation}
\end{document}
