APA (7e ed.) Bronvermelding

Wagner, R., & Porter, A. (1977). The ring of the Nibelung. Faber Music.

Chicago (17e ed.) Bronvermelding

Wagner, Richard, en Andrew Porter. The Ring of the Nibelung. London: Faber Music, 1977.

MLA (9e ed.) Bronvermelding

Wagner, Richard, en Andrew Porter. The Ring of the Nibelung. Faber Music, 1977.