%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Darke1994} Darke, S. (1994). The Use of Benzodiazepines Among Injecting Drug Users. \textit{Drug and alcohol review}, \textit{13}, 63--69.

\end{thebibliography}

\end{document}

