%%
%% The LaTeX Companion, 3ed
%%
%% Example 16-7-42 on page II-569 in "Changing format directives".
%%
%% 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{189.0pt}
%
  \setlength\parindent{0pt}
%  Use biber program

  \makeatletter
  \renewcommand\section{\@startsection{section}{1}{\z@}%
    {-1.25ex \@plus-1ex \@minus-.2ex}%
    {.5ex}%
    {\normalfont\normalsize\bfseries}}
  \makeatother

  \usepackage{microtype} % for better line breaking

%StartShownPreambleCommands
\usepackage[style=authoryear]{biblatex}
\addbibresource{tlc.bib}
\DeclareNameAlias{sortname}{family-given}
\AtBeginBibliography{%
 \renewcommand\mkbibnamefamily[1]{\textsc{#1}}%
 \renewcommand\mkbibnamegiven [1]{\textsc{#1}}%
 \renewcommand\mkbibnameprefix[1]{\textsc{#1}}%
 \renewcommand\mkbibnamesuffix[1]{\textsc{#1}}}
%StopShownPreambleCommands

\begin{document}
\textcite{LGC97}
\printbibliography
\end{document}