\begin{table}%t2
\caption{\label{iso_tab1}Fluxes derived from Gaussian fits to the fine-structure lines observed with ISO-LWS grating positioned at~$\rm 14^h 45^m 21.0^s$   $-59^{\circ} 48' 14''$ (J2000).}
\small%\centering
\par
\begin{tabular}{c c c c} 
\hline \hline\noalign{\smallskip}
Element and & Wavelength & Flux & $\frac{f({\rm line})}{f([{\rm C~II}])}$\\
ionisation stage & ($\mu$m) & ($10^{-17}$ W cm$^{-2}$) & \\ 
\hline
$[$C II$]$ & 157.78 & 1.23 & 1\\
$[$O I$]$  & 145.63 & 0.18  & 0.15\\
$[$N II$]$ & 121.84 & 0.36 & 0.29\\
$[$O III$]$ & 88.42 & 5.77 & 4.69\\
$[$O I$]$ & 63.23 & 0.68 & 0.55\\
$[$N III$]$ & 57.26 & 3.23 & 2.63\\
$[$O III$]$ & 51.85 & 8.29 & 6.74\\ \hline
\end{tabular}
\end{table}