Franklin

MLA

Wagner, Richard, and Alfred Forman. The Nibelung's Ring: a Festival Play for Three Days and a Fore-evening. London: Schott and co. [etc.], 1877.

APA

Wagner, R., & Forman, A. (1877). The Nibelung's ring: a festival play for three days and a fore-evening. London: Schott and co. [etc.].

Chicago

Wagner, Richard, and Alfred Forman. The Nibelung's Ring: A Festival Play for Three Days and a Fore-Evening. London: Schott and co. [etc.], 1877.