APA (7th ed.) Citation

Wagner, W. R. (1947). El anillo del Nibelungo. Ricordi Americana.

Chicago Style (17th ed.) Citation

Wagner, Wilhelm Richard. El Anillo Del Nibelungo. Buenos Aires: Ricordi Americana, 1947.

MLA (9th ed.) Citation

Wagner, Wilhelm Richard. El Anillo Del Nibelungo. Ricordi Americana, 1947.

Warning: These citations may not always be 100% accurate.