Cita APA (7a ed.)

Harnad, S. (1987). Categorical perception: : the groundwork of cognition. University Press.

Cita Chicago Style (17a ed.)

Harnad, Stevan. Categorical Perception: : The Groundwork of Cognition. Cambridge [etc.]: University Press, 1987.

Cita MLA (9a ed.)

Harnad, Stevan. Categorical Perception: : The Groundwork of Cognition. University Press, 1987.