APA (7th ed.) Citation

Kingma, S. A. (2017). Direct benefits explain interspecific variation in helping behaviour among cooperatively breeding birds. Nature Portfolio.

Chicago Style (17th ed.) Citation

Kingma, Sjouke A. Direct Benefits Explain Interspecific Variation in Helping Behaviour Among Cooperatively Breeding Birds. Nature Portfolio, 2017.

MLA (8th ed.) Citation

Kingma, Sjouke A. Direct Benefits Explain Interspecific Variation in Helping Behaviour Among Cooperatively Breeding Birds. Nature Portfolio, 2017.

Warning: These citations may not always be 100% accurate.