Cita APA (7th ed.)

Smith, E. E., & Medin, D. L. (1981). Categories and concepts. Harvard University Press.

Cita Chicago (17th ed.)

Smith, Edward E., i Douglas L. Medin. Categories and Concepts. Cambridge, Mass: Harvard University Press, 1981.

Cita MLA (9th ed.)

Smith, Edward E., i Douglas L. Medin. Categories and Concepts. Harvard University Press, 1981.