How can I remove the top and bottom margin of the citacao item in abntex? It currently looks like this image:

I need it to have just a single space between lines.
The abntex implementation is
\newenvironment{citado}%
{\begin{espacosimples}%
\small
\begin{list}{}{%
\setlength{\listparindent}{0cm}%
\setlength{\itemindent}{\listparindent}%
\setlength{\rightmargin}{0cm}%
\setlength{\leftmargin}{4cm}%
\setlength{\parsep}{0pt}}%
\item\relax}%
{\end{list}\end{espacosimples}}
\newenvironment{citacao}%
{\begin{citado}}%
{\end{citado}}%
`. – Corentin Oct 25 '12 at 16:47\AtBeginEnvironment{citado}{\partopsep=0pt \parskip=0pt}help? – Paulo Cereda Oct 25 '12 at 17:08