Cita APA (7a ed.)

Dunbar, R. I. M. (1997). Grooming, gossip, and the evolution of language (2nd printing.). Harvard University Press.

Cita Chicago Style (17a ed.)

Dunbar, R. I. M. Grooming, Gossip, and the Evolution of Language. 2nd printing. Cambridge (Massachusetts): Harvard University Press, 1997.

Cita MLA (9a ed.)

Dunbar, R. I. M. Grooming, Gossip, and the Evolution of Language. 2nd printing. Harvard University Press, 1997.