%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Stepien+Tumeo2006} Stepien, C. A., \& Tumeo, M. A. (2006). Invasion genetics of Ponto-Caspian gobies in the Great Lakes: a cryptic species, absence of founder effects, and comparative risk analysis. \textit{Biological Invasions}, (8), 61--78.

\end{thebibliography}

\end{document}

