APA (7th ed.) Citation

Dunbar, R. I. M. (1997). Grooming, Gossip and the evolution of language (2. print.). Harvard Univ. Press.

Chicago Style (17th ed.) Citation

Dunbar, Robin I. M. Grooming, Gossip and the Evolution of Language. 2. print. Cambridge, Mass: Harvard Univ. Press, 1997.

MLA (9th ed.) Citation

Dunbar, Robin I. M. Grooming, Gossip and the Evolution of Language. 2. print. Harvard Univ. Press, 1997.