APA (7th ed.) Citation

Wagner, R., & Wolf, O. Walküre, Monolog Siegmunds. Grammophon.

Chicago Style (17th ed.) Citation

Wagner, Richard, and Otto Wolf. Walküre, Monolog Siegmunds. Berlin: Grammophon.

MLA (9th ed.) Citation

Wagner, Richard, and Otto Wolf. Walküre, Monolog Siegmunds. Grammophon.

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