APA (7th ed.) Citation

Wagner, R., Corder, H., Corder, F., & Kleinmichel, R. (1890). Tristan and Isolda: English-German. Breitkopf & Härtel.

Chicago Style (17th ed.) Citation

Wagner, Richard, H. Corder, Frederick Corder, and Richard Kleinmichel. Tristan and Isolda: English-German. Leipzig ; New York: Breitkopf & Härtel, 1890.

MLA (8th ed.) Citation

Wagner, Richard, et al. Tristan and Isolda: English-German. Breitkopf & Härtel, 1890.