\begin{table}%t3
\caption{\label{lineas}Relative observed and reddening corrected line intensities
  [$F$(H$\beta)$~=~$I$(H$\beta)=1000$] for the different observed knots of IIZw71.}
\par
%\centerline
 {\small \begin{tabular}{lcccccccc}
\hline
\hline                           
\multicolumn{1}{c}{$\lambda$  (\AA)}  & \multicolumn{2}{c}{A} & \multicolumn{2}{c}{B}  & \multicolumn{2}{c}{C} & \multicolumn{2}{c}{D} \\
 & $F(\lambda)$  &  $I(\lambda)$ &  $F(\lambda)$  & $I(\lambda)$ &  $F(\lambda)$  &  $I(\lambda)$ &  $F(\lambda)$  & $I(\lambda)$ \\
\hline
3726  [O{\sc ii}]$^a$     & $2018\pm 62$  &  $2070\pm 240$ & $1545\pm 43$ & $1667\pm 132$ &  $1497\pm 60$ & $1561\pm 133$ &  $1225\pm 107$ &  $1552\pm 227$  \\
3729  [O{\sc ii}]$^a$        & $2936\pm 289$ &  $2767\pm 377$ & $2271\pm 61$ &  $2450\pm 163$ &  $1990\pm 74$ & $2076\pm 156$ &  $1758\pm 150$ &  $2227\pm 290$ \\
3869  [Ne{\sc iii}]        & $321\pm 37$  &  $328\pm 93$ & $242\pm 23$ &  $258\pm 50$ & $297\pm 23$ & $307\pm 53$ &  $183\pm 25$ &  $224\pm 68$  \\
4102  H$\delta$              &  $303\pm 29$  &  $307\pm 75$ &  $242\pm 15$  &  $254\pm 40$ &   $257\pm 19$  & $263\pm 42$ &   $233\pm 32$  &  $270\pm 67$  \\
4340  H$\gamma$              &  $584\pm 91$  &  $570\pm 117$ &  $466\pm 13$  &  $480\pm 43$ &   $483\pm 31$  & $491\pm 52$ &   $417\pm 43$  &  $458\pm 75$  \\
4363  [O{\sc iii}]           & --- & --- & $29\pm 5$ &  $30\pm 11$ &  $43\pm 10$ & $44\pm 16$ & --- & ---  \\
4861  H$\beta$              &  $1000\pm 39$  &  $1000\pm 39$ &  $1000\pm 37$  &  $1000\pm 37$ &   $1000\pm 47$  & $1000\pm 47$ &   $1000\pm 118$  &  $1000\pm 118$  \\
4959  [O{\sc iii}]           & $734\pm 42$ & $733\pm 54$ & $818\pm 27$ &  $814\pm 34$ &  $937\pm 34$ & $934\pm 41$ &  $850\pm 75$ & $837\pm 80$  \\
5007  [O{\sc iii}]           & $2101\pm 69$ & $2096\pm 99$ & $2411\pm 67$ & $2393\pm 79$ & $2770\pm 95$ & $2759\pm 106$ & $2608\pm 119$ & $2550\pm 223$  \\
6300  [O{\sc i}]           &      $83\pm 19$    & $81\pm 30$  &  $92\pm 7$   & $87\pm 16$ &  $77\pm 6$   &  $74\pm 15$  &  $100\pm 13$  &  $84\pm 25$  \\
6548  [N{\sc ii}]           &      $101\pm 19$    &  $99\pm 19$  &  92~$\pm$~7    &  86~$\pm$~8  &   93~$\pm$~13   & 90~$\pm$~17  &  100~$\pm$~13  & 82~$\pm$~15  \\
6563  H$\alpha$              & 2752~$\pm$~126 & 2693~$\pm$~269 & 2895~$\pm$~93 & 2713~$\pm$~161 &  3000~$\pm$~120  & 2894~$\pm$~183 & 3333~$\pm$~324 & 2724~$\pm$~320  \\
6584  [N{\sc ii}]            &  303~$\pm$~21 &  296~$\pm$~24 &  250~$\pm$~18  & 234~$\pm$~21 &   230~$\pm$~14  & 222~$\pm$~18 &  250~$\pm$~15  & 204~$\pm$~19  \\
6717  [S{\sc ii}]            &  514~$\pm$~41  &  502~$\pm$~59 &  405~$\pm$~17  & 378~$\pm$~29 &   297~$\pm$~12  & 285~$\pm$~24 &   267~$\pm$~15  &  215~$\pm$~29  \\
6731  [S{\sc ii}]            &  339~$\pm$~30  & 332~$\pm$~47 & 292~$\pm$~12  & 272~$\pm$~24 &   217~$\pm$~14  & 208~$\pm$~24 &  200~$\pm$~9  & 161~$\pm$~24  \\
7137  [Ar{\sc iii}]            &  138~$\pm$~19  & 134~$\pm$~46 &  68~$\pm$~7  & 63~$\pm$~18 &   77~$\pm$~6  & 73~$\pm$~20 & ---  &  ---  \\
9069  [S{\sc iii}]           &  92~$\pm$~28 & 88~$\pm$~42 &  124~$\pm$~15  & 110~$\pm$~43 &  107~$\pm$~14   & 100~$\pm$~43  &  250~$\pm$~43   &  174~$\pm$~80  \\
\hline
\multicolumn{1}{c}{$F$(H$\beta$)~(10$^{-15}$~erg~seg$^{-1}$~cm$^{-2}$)}  & \multicolumn{2}{c}{0.89~$\pm$~0.05} & \multicolumn{2}{c}{3.61~$\pm$~0.10} & \multicolumn{2}{c}{4.19~$\pm$~0.10} & \multicolumn{2}{c}{3.49~$\pm$~0.10} \\
%\multicolumn{1}{c}{EW(H$\beta$)(\AA)}  & \multicolumn{2}{c}{35~$\pm$~5} & \multicolumn{2}{c}{30~$\pm$~2} & \multicolumn{2}{c}{11~$\pm$~1} & \multicolumn{2}{c}{32~$\pm$~5} \\
\multicolumn{1}{c}{$c$(H$\beta$)}  & \multicolumn{2}{c}{$<$0.05} & \multicolumn{2}{c}{0.09~$\pm$~0.03} & \multicolumn{2}{c}{0.05~$\pm$~0.02} & \multicolumn{2}{c}{0.28~$\pm$~0.02} \\
\hline
\end{tabular}}
\par
\medskip
 For each knot we also give the flux of H$\beta$, once reddening corrected and after subtraction of the underlying absorption and the constant of reddening, with their corresponding errors.
$^a$~Partially blended (see text and Fig.~\ref{blend}).
\end{table}