%%
%% The LaTeX Companion, 3ed
%%
%% Example 16-7-5 on page II-546 in "Citing with biblatex".
%%
%% 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{135.0pt}
%
  \setlength\parindent{0pt}
  \setlength\parskip{\smallskipamount}
%  Use biber program

%StartShownPreambleCommands
\usepackage[style=authoryear]{biblatex}
\addbibresource{tlc.bib}

%StopShownPreambleCommands

\begin{document}
\cite[see][for the details.]{Knuth-CT-a}; \\
\cite[see][for the details!]{Knuth-CT-a};

\cite[see][for the details.\bibsentence]{Knuth-CT-a}; \\
\cite[see][for the details!\nopunct]    {Knuth-CT-a};
\end{document}