Friedrichs, O. (1912). La Question Louis XVII: Response à Frédéric Masson / [von] Otto Friedrichs. Daragon.
Čikaški stil citiranja (17. izdanje)Friedrichs, Otto. La Question Louis XVII: Response à Frédéric Masson / [von] Otto Friedrichs. Paris: Daragon, 1912.
MLA način citiranja (8. izdanje)Friedrichs, Otto. La Question Louis XVII: Response à Frédéric Masson / [von] Otto Friedrichs. Daragon, 1912.
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