APA (7th ed.) Citation

Wagner, R. Tristan und Isolda: Prelude and love death. Boosey and Hawkes.

Chicago Style (17th ed.) Citation

Wagner, Richard. Tristan Und Isolda: Prelude and Love Death. London: Boosey and Hawkes.

MLA (9th ed.) Citation

Wagner, Richard. Tristan Und Isolda: Prelude and Love Death. Boosey and Hawkes.

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