Sub-figures arranged in rows in LaTeX

subfloat-row.tex

\begin{figure}
\centering
\subfloat[]
{
    \includegraphics[scale=.6]{fig-1.pdf}
    \label{fig:foo-1}
}
\par
\subfloat[]
{
    \includegraphics[scale=.6]{fig-2.pdf}
    \label{fig:foo-2}
}
\par
\subfloat[]
{
    \includegraphics[scale=.85]{fig-3.pdf}
    \label{fig:foo-3}
}
\caption{ Sub-figures arranged one below another. }
\label{fig:foo}
\end{figure}