APA (7th ed.) Citation

Wagner, R. (1885). Die Walküre: The Valkyr, first opera of the Rhinegold trilogy. [German and English text, and music of the principal airs]. O. Ditson Co..

Chicago Style (17th ed.) Citation

Wagner, Richard. Die Walküre: The Valkyr, First Opera of the Rhinegold Trilogy. [German and English Text, and Music of the Principal Airs]. Boston: O. Ditson Co., 1885.

MLA (8th ed.) Citation

Wagner, Richard. Die Walküre: The Valkyr, First Opera of the Rhinegold Trilogy. [German and English Text, and Music of the Principal Airs]. O. Ditson Co., 1885.