APA (7th ed.) Citation

Wagner, R., & American Symphony Orchestra. (2003). Ride of the Valkyries. Project Gutenberg.

Chicago Style (17th ed.) Citation

Wagner, Richard, and American Symphony Orchestra. Ride of the Valkyries. Project Gutenberg, 2003.

MLA (9th ed.) Citation

Wagner, Richard, and American Symphony Orchestra. Ride of the Valkyries. Project Gutenberg, 2003.

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