%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Friedrich2004} Friedrich A., \textit{Wielosk{\l}adnikowa to{\.z}samo{\'s}{\'c} indywidualna w pismach Henryka Nusbauma}, [w:]  \textit{Kwestia {\.z}ydowska w XIX wieku. Spory o to{\.z}samo{\'s}{\'c} Polak{\'o}w}, red.~Borkowska, G., red.~Rudkowska, M., Warszawa, 2004, s. 193--200

\end{thebibliography}

\end{document}

