توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Kenny, E., Birkhead, T., & Green, J. (2017). Allopreening in birds is associated with parental cooperation over offspring care and stable pair bonds across years. Oxford University Press.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Kenny, E., T. Birkhead, و J. Green. Allopreening in Birds Is Associated with Parental Cooperation over Offspring Care and Stable Pair Bonds Across Years. Oxford University Press, 2017.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Kenny, E., et al. Allopreening in Birds Is Associated with Parental Cooperation over Offspring Care and Stable Pair Bonds Across Years. Oxford University Press, 2017.