%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Shapshak_etal1993} Shapshak, P., McCoy, C. B., Rivers, J. E., Chitwood, D. D., Mash, D. C., Weatherby, N. L., et al. (1993). Inactivation of Human Immunodeficiency Virus-1 at Short Time Intervals Using Undiluted Bleach : Letter to the Editor. \textit{Journal of acquired immune deficiency syndromes}, \textit{6}, 218--219.

\end{thebibliography}

\end{document}

