La grande duchesse de Gérolstein. Billet[s] doux = The letters /Grande duchesse de Gérolstein. Billets doux. Vocal score. English & French

Chicago citation style
Offenbach, Jacques, 1819-1880. La grande duchesse de Gérolstein. Billet[s] doux = The letters /,Grande duchesse de Gérolstein. Billets doux. Vocal score. English & French. ©1868. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/101800740. (Accessed December 10, 2018.)
APA citation style
Offenbach, Jacques, 1819-1880, (©1868) La grande duchesse de Gérolstein. Billet[s] doux = The letters /,Grande duchesse de Gérolstein. Billets doux. Vocal score. English & French. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/101800740
MLA citation style
Offenbach, Jacques, 1819-1880. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/101800740>.
Note: These citations are programmatically generated and may be incomplete.