APA (7th ed.) Citation

Solheim, J., Stordahl, K., & Humlum, O. Solar Activity and Svalbard Temperatures. Wiley.

Chicago Style (17th ed.) Citation

Solheim, Jan-Erik, Kjell Stordahl, and Ole Humlum. Solar Activity and Svalbard Temperatures. Wiley.

MLA (9th ed.) Citation

Solheim, Jan-Erik, et al. Solar Activity and Svalbard Temperatures. Wiley.