%&LaTeX
\documentclass{article}

\usepackage[latin1]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}

\begin{document}

\begin{thebibliography}{1}

\bibitem{Chung2001} Chung, I. J. (2001). Immobilization of arsenic in tailing by using iron and hydrogen peroxide. \textit{Environ. Technol.}, \textit{22}(7), 831--835.

\end{thebibliography}

\end{document}

