%%
%% The LaTeX Companion, 3ed
%%
%% Example 16-2-3 on page II-476 in "Customizing citation references and the bibliography in standard \LaTeX {}".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{243.0pt}

% small headings for the example
\makeatletter
\renewcommand\section{\@startsection{section}{1}{\z@}%
                                    {-1.25ex \@plus-1ex \@minus-.2ex}%
                                    {.8ex}%
                                    {\normalsize\bfseries}}
\makeatother

%StartShownPreambleCommands
\bibliographystyle{abbrv}
\makeatletter
  \renewcommand\@biblabel[1]{#1.}
\makeatother
%StopShownPreambleCommands

\begin{document}
\nocite{Knuth-CT-a,Knuth:TB10-1-31}
\bibliography{tlc}
\end{document}
