%% 
%%  A DANTE-Edition example
%% 
%%  Example 04-01-7 on page 131.
%% 
%%  Copyright (C) 2010 Herbert Voss
%% 
%%  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.
%% 
%% 
%% ==== 
% Show page(s) 1
%% 
\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{201.70511pt}

\usepackage[utf8]{inputenc}% adapt maybe
\setlength\parindent{0pt}
\setlength\parskip{6pt plus 2pt minus 1pt}

\usepackage{longtable}

\begin{document}
A line of text before the table.
\begin{longtable}{|l|c|r|p{1.5cm}|}\hline
left & centred & right & box\\\hline
l & c & r & p\{1.5cm\}\\\hline
\end{longtable}
A line of text after the table.\par
A line of text before the table.
\setlength\LTpre{0pt}%
\setlength\LTpost{0pt}%
\begin{longtable}{|l|c|r|p{1.5cm}|}\hline
left & centred & right & box\\\hline
l & c & r & p\{1.5cm\}\\\hline
\end{longtable}
A line of text after the table.
\end{document}