APA-viite (7. p.)

Green, J., Freckleton, R., & Hatchwell, B. (2016). Variation in helper effort among cooperatively breeding bird species is consistent with Hamilton’s Rule. Nature.

Chicago-viite (17. p.)

Green, J., R. Freckleton, ja B. Hatchwell. Variation in Helper Effort Among Cooperatively Breeding Bird Species Is Consistent with Hamilton’s Rule. Nature, 2016.

MLA-viite (9. p.)

Green, J., et al. Variation in Helper Effort Among Cooperatively Breeding Bird Species Is Consistent with Hamilton’s Rule. Nature, 2016.