%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{FradejasLebrero1993} Fradejas Lebrero, J. (1993). Tres notas a la {\textquotedblleft}Celestina{\textquotedblright}. \textit{Celestinesca}, 17 (1), 47--56.

\end{thebibliography}

\end{document}

