%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Agency+Development2006} Agency, U. S. E. P., \& Development, O. of R. and. (2006). \textit{Active and semi-passive lime treatment of acid mine drainage at Leviathan Mine, California}. Cincinnati, OH: National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency.

\end{thebibliography}

\end{document}

