Παραπομπή σε μορφή APA (7η εκδ.)

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.

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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.