APA (7th ed.) Citation

Heartfield, K. (2023). The valkyrie. Harper Voyager.

Chicago Style (17th ed.) Citation

Heartfield, Kate. The Valkyrie. London: Harper Voyager, 2023.

MLA (9th ed.) Citation

Heartfield, Kate. The Valkyrie. Harper Voyager, 2023.

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