\begin{table}%t1
\caption{Galaxies from AMIGA sample listed as active in the literature$^{1}$.}\label{table:literature}
\small
%\centerline
 {\begin{tabular}{c c c c }
\hline \hline\noalign{\smallskip}
CIG$^{1}$ & NED$^{2}$ & V-C$^{2}$ & Our study$^{2,3}$ \\
\hline
6       & HII           &       & HII \\
33      & Sy? LINER     & Sy?   & \\
45      & HII           &       & HII \\
55      & LINER HII     &       & \\
56      & Sbrst         &       & Sbrst \\
57      & Sy2           & Sy2   & Sy2 \\
....     & ...           & ...   & ... \\
\hline
\end{tabular}}
\medskip
$^{\rm 1}$  Columns:  1) CIG number;  2) NED classification;  3) V\'eron-Cetty Catalogue classification; 4) Classification adopted for our study.\\
 $^{\rm 2}$ Sy~= Seyfert; HII = nuclear HII region; Sbrst= Starburst; SBNG = small, bright nucleus galaxy; NLAGN~= narrow line active galaxies (a mixture of Seyfert 2's, LINERs, and starburst/AGN composites); DANS~= dwarf amorphous nuclei starburst galaxies.\\
 $^{\rm 3}$  Classification obtained discarding those cases where a disagreement was found between the NED and V\'eron-Cetty classification.
\end{table}