APA (7th ed.) Citation

Sivertsen, B., Friborg, O., Pallesen, S., Vedaa, Ø., & Hopstock, L. A. (2021). Sleep in the land of the midnight sun and polar night: The Tromsø study. Chronobiology International, 38(3), 334.

Chicago Style (17th ed.) Citation

Sivertsen, Børge, Oddgeir Friborg, Ståle Pallesen, Øystein Vedaa, and Laila Arnesdatter Hopstock. "Sleep in the Land of the Midnight Sun and Polar Night: The Tromsø Study." Chronobiology International 38, no. 3 (2021): 334.

MLA (8th ed.) Citation

Sivertsen, Børge, et al. "Sleep in the Land of the Midnight Sun and Polar Night: The Tromsø Study." Chronobiology International, vol. 38, no. 3, 2021, p. 334.