APA (7th ed.) Citation

Lehmann, J., Korstjens, A., & Dunbar, R. (2007). Group size, grooming and social cohesion in primates.

Chicago Style (17th ed.) Citation

Lehmann, J., A. Korstjens, and R. Dunbar. Group Size, Grooming and Social Cohesion in Primates. 2007.

MLA (9th ed.) Citation

Lehmann, J., et al. Group Size, Grooming and Social Cohesion in Primates. 2007.