%&LaTeX
\documentclass{article}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}

\begin{document}

\begin{thebibliography}{1}

\bibitem{AddictionValais2012} Addiction Valais. (2012). \textit{La consomation de tabac, d{\textquoteright}alcool et de cannabis chez les {\'e}coliers valaisans en 2010}. Sion: Author.

\end{thebibliography}

\end{document}

