Compila correttamente (senza warnings)… ma il testo viene messo in orizzontale, fuori dalla cella di appartenenza e sovrapposto al testo “totale” della tabella:
Riporto il codice…
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\documentclass[a4paper,twoside,openright,12pt,titlepage]{book}
\usepackage[dvips]{color}
\usepackage{graphicx}
\usepackage{subfigure}
\usepackage{wrapfig}
\usepackage{floatflt}
\usepackage{multirow}
\usepackage{rotating}
….
\begin{table}[!ht]
\setlength{\abovecaptionskip}{0mm}
\begin{center}
{\footnotesize
\begin{tabular}{||c|c|c|c|c|c|c|c|c|c|c||}
\hline
& & \multicolumn{9}{|c||}{\textbf{Energy Source}}\\
\hline
& & \multicolumn{3}{|c|}{\textbf{Coal}}& \multicolumn{3}{|c|}{\textbf{Methane}}& \multicolumn{3}{|c||}{\textbf{Photovoltaic Cell}}\\
\hline
\multicolumn{2}{||c|}{\textbf{Emissions}} & CO2 & NOX & SOX & COX & NOX & SOX & COX & NOX & SOX\\
\hline
\multirow{3}{*}{\begin{sideways}\parbox{15mm}{\textbf{Process}}\end{sideways}} & \textbf{Extraction} & – & 0,05 & 0,04 & – & – & – & na & na & na\\
& \textbf{Construction} & 1 & – & – & – & – & – & 48 & na & na\\
& \textbf{In function} & 960 & 2,6 & 2,66 & 710 & 1,6 & – & na & na & na\\
\hline
\multicolumn{2}{||c|}{\textbf{Total}} & 961 & 2,65 & 2,64 & 710 & 1,6 & – & 48 & na & na\\
\hline
\end{tabular}}
\end{center}
\caption[\scriptsize Comparison between coal, gas and photovoltaic plants.]{\scriptsize Comparison between coal, gas and photovoltaic plants. Polluting emissions (kg/MWh).}
\label{PollutionComparison}
\end{table}
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Grazie mille,
Max