%%
%% The LaTeX Companion, 2ed (second printing August 2004)
%%
%% Example 12-3-10 on page 703.
%%
%% 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{159.0pt}

\setlength\parindent{0pt}
%% Do not show the bibliography itself in the example,
%% so put it on a separate page:
\AtEndDocument{\newpage\bibliographystyle{chicago}
                        \bibliography{tex}}

\StartShownPreambleCommands
\usepackage{natbib}
\StopShownPreambleCommands
\begin{document}
Normal citation: \citet{vLeunen:92}         \\
\Citet{vLeunen:92} or \Citealt{vLeunen:92}  \\
\Citep{vLeunen:92} or \Citealp{vLeunen:92}  \\
\Citeauthor{vLeunen:92}
\end{document}