APA (7th ed.) Citation

Wagner, R. (1905). Tristan und Isolde (o.A.). Breitkopf & Härtel.

Chicago Style (17th ed.) Citation

Wagner, Richard. Tristan Und Isolde. o.A. Leipzig: Breitkopf & Härtel, 1905.

MLA (8th ed.) Citation

Wagner, Richard. Tristan Und Isolde. o.A. Breitkopf & Härtel, 1905.

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