APA (7th ed.) Citation

Kaplan, G. (2020). Play behaviour, not tool using, relates to brain mass in a sample of birds. Nature Portfolio.

Chicago Style (17th ed.) Citation

Kaplan, Gisela. Play Behaviour, Not Tool Using, Relates to Brain Mass in a Sample of Birds. Nature Portfolio, 2020.

MLA (8th ed.) Citation

Kaplan, Gisela. Play Behaviour, Not Tool Using, Relates to Brain Mass in a Sample of Birds. Nature Portfolio, 2020.

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