%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Sheoran+Sheoran2006} Sheoran, A. S., \& Sheoran, V. (2006). Heavy metal removal mechanism of acid mine drainage in wetlands: A critical review. \textit{Minerals Engineering}, \textit{19}(2), 105--116.

\end{thebibliography}

\end{document}

