APA (7th ed.) Citation

Wagner, R., & Wagner, R. (1997). Das Rheingold (1. publ. ; [Textbuch].). Phaidon Press.

Chicago Style (17th ed.) Citation

Wagner, Richard, and Richard Wagner. Das Rheingold. 1. publ. ; [Textbuch]. London: Phaidon Press, 1997.

MLA (9th ed.) Citation

Wagner, Richard, and Richard Wagner. Das Rheingold. 1. publ. ; [Textbuch]. Phaidon Press, 1997.