%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Bullock+Parnell2017} Bullock, L. A., \& Parnell, J. (2017). Selenium and molybdenum enrichment in uranium roll-front deposits of Wyoming and Colorado, USA. \textit{Journal of Geochemical Exploration}, \textit{180}, 101--112.

\end{thebibliography}

\end{document}

