APA aipamena

Russell, M. B., Kristiansen, H. A., Šaltytė-Benth, J., & Kværner, K. J. (2008). A cross-sectional population-based survey of migraine and headache in 21,177 Norwegians: The Akershus sleep apnea project. Springer Milan.

Chicago Style aipamena

Russell, Michael Bjørn, Håvard Anton Kristiansen, Jūratė Šaltytė-Benth, and Kari Jorunn Kværner. A Cross-sectional Population-based Survey of Migraine and Headache in 21,177 Norwegians: The Akershus Sleep Apnea Project. Springer Milan, 2008.

MLA aipamena

Russell, Michael Bjørn, Håvard Anton Kristiansen, Jūratė Šaltytė-Benth, and Kari Jorunn Kværner. A Cross-sectional Population-based Survey of Migraine and Headache in 21,177 Norwegians: The Akershus Sleep Apnea Project. Springer Milan, 2008.