Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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