\documentclass[a4paper,12pt]{book} \usepackage[utf8]{inputenc} \usepackage{graphicx} \usepackage{cite} \usepackage{footnote} \usepackage{url} \author{Officina di Fisica} \title{Big Data revolution} \date{Settembre 2017} \begin{document} \maketitle \frontmatter \begin{center} \includegraphics{images/logomtg2017} \end{center} \tableofcontents \mainmatter \input{intro} \input{lavoro} \input{scienza} \input{profilazione_controllo} \input{non_neutralita} \input{conclusioni} \bibliography{mybib}{} \bibliographystyle{plain} \backmatter % bibliography, glossary and index would go here. \end{document}