%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Mason1979} Mason, J. C. (1979). \textit{Significance of egg size in the freshwater crayfish, Pacifastacus leniusculus (Dana)} (Vol. 4).

\end{thebibliography}

\end{document}

