APA (7th ed.) Citation

Knausgård, K. O., Kiefer, A., & Burkey, I. (2018). Summer. Penguin Press.

Chicago Style (17th ed.) Citation

Knausgård, Karl Ove, Anselm Kiefer, and Ingvild Burkey. Summer. New York: Penguin Press, 2018.

MLA (8th ed.) Citation

Knausgård, Karl Ove, et al. Summer. Penguin Press, 2018.

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