APA aipamena

Ullrich, P., Afari, N., Jacobsen, C., Goldberg, J., & Buchwald, D. (2007). Cold Pressor Pain Sensitivity in Twins Discordant for Chronic Fatigue Syndrome.

Chicago Style aipamena

Ullrich, Phil, Niloofar Afari, Clemma Jacobsen, Jack Goldberg, and Dedra Buchwald. Cold Pressor Pain Sensitivity in Twins Discordant for Chronic Fatigue Syndrome. 2007.

MLA aipamena

Ullrich, Phil, et al. Cold Pressor Pain Sensitivity in Twins Discordant for Chronic Fatigue Syndrome. 2007.