APA-ийн эшлэл(7 дахь хэвлэлт)

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.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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.