APA (7th ed.) Citation

Heaney, S., & Imreh, A. Hyperboreus.

Chicago Style (17th ed.) Citation

Heaney, Seamus, and András Imreh. Hyperboreus.

MLA (9th ed.) Citation

Heaney, Seamus, and András Imreh. Hyperboreus.

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