APA (7th ed.) Citation

Hillner, J. (2023). Helena Augusta: Mother of the empire. Oxford University Press.

Chicago Style (17th ed.) Citation

Hillner, Julia. Helena Augusta: Mother of the Empire. New York, NY: Oxford University Press, 2023.

MLA (9th ed.) Citation

Hillner, Julia. Helena Augusta: Mother of the Empire. Oxford University Press, 2023.