\include{zinput} \begin{document}\section{{\tt approval}: U.S. Presidential Approval Data}\label{ss:approval}
\keyword{datasets}{approval}
\begin{Description}\relax
Monthy public opinion data for 2001-2006.
\end{Description}
\begin{Usage}
\begin{verbatim}data(approval)\end{verbatim}
\end{Usage}
\begin{Format}\relax
A table containing 8 variables ("month", "year", "approve", 
"disapprove", "unsure", "sept.oct.2001", "iraq.war", and "avg.price")
and 65 observations.
\end{Format}
\begin{Source}\relax
ICPSR
\end{Source}
\begin{References}\relax
Stuff here
\end{References}

\end{document}
