%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{AbarzaBaumann2011} Abarza Baumann, M. (2011). \textit{Historia \& concepto del black metal}. Llinars del Vall{\`e}s: Quarentena.

\end{thebibliography}

\end{document}

