%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Carpentier_etal2012} Carpentier, C., Mulligan, K., Laniel, L., Potter, D., Hughes, B., Vandam, L., et al. (2012). \textit{Cannabis production and markets in Europe}  (C. Carpentier, L. Laniel, \& P. Griffiths, Eds.). Insights, 122. Luxembourg: Publications Office of the European Union.

\end{thebibliography}

\end{document}

