%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Sparre1987} Sparre, P. (1987). \textit{A method for the estimation of growth, mortality and gear selection/recruitment parameters from length-frequency samples weighted by catch per effort}  (D. Pauly, \& G. R. Morgan, Eds.) (Vol. 13). MAZZARA-DEL-VALLO,-ITALY.

\end{thebibliography}

\end{document}

