%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{UnitedNationsOfficeonDrugsandCrime+Costa2007} United Nations Office on Drugs and Crime, \& Costa, A. M. (2007). \textit{Reducing adverse health and social consequences of drug abuse : a comprehensive approach}. Vienna: United Nations Office on Drugs and Crime (UNODC).

\end{thebibliography}

\end{document}

