APA (7th ed.) Citation

Helle, K., & Helle, K. (2003). The Cambridge history of Scandinavia (First published.). Cambridge University Press. https://doi.org/10.1017/CHOL9780521472999

Chicago Style (17th ed.) Citation

Helle, Knut, and Knut Helle. The Cambridge History of Scandinavia. First published. Cambridge: Cambridge University Press, 2003. https://doi.org/10.1017/CHOL9780521472999.

MLA (9th ed.) Citation

Helle, Knut, and Knut Helle. The Cambridge History of Scandinavia. First published. Cambridge University Press, 2003. https://doi.org/10.1017/CHOL9780521472999.