Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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