Cita APA (7a ed.)

Lieberman, P. (1994). Uniquely human: The evolution of speech, thought and selfless behavior (3rd printing.). Harvard University Press.

Cita Chicago Style (17a ed.)

Lieberman, Philip. Uniquely Human: The Evolution of Speech, Thought and Selfless Behavior. 3rd printing. Cambridge (Massachusetts) [etc.]: Harvard University Press, 1994.

Cita MLA (9a ed.)

Lieberman, Philip. Uniquely Human: The Evolution of Speech, Thought and Selfless Behavior. 3rd printing. Harvard University Press, 1994.