APA (7th ed.) Citation

Wagner, R., & Porter, A. (1977). The Ring of the Nibelung. W.W. Norton.

Chicago Style (17th ed.) Citation

Wagner, Richard, and Andrew Porter. The Ring of the Nibelung. New York: W.W. Norton, 1977.

MLA (9th ed.) Citation

Wagner, Richard, and Andrew Porter. The Ring of the Nibelung. W.W. Norton, 1977.