Medin, D. L., & Nakamura, G. V. (1993). Categorization by humans and machines. Academic.
Chicago-čujuhus (17. p.)Medin, Douglas L., juo Glenn V. Nakamura. Categorization by Humans and Machines. San Diego: Academic, 1993.
MLA-čujuhus (9. p.)Medin, Douglas L., juo Glenn V. Nakamura. Categorization by Humans and Machines. Academic, 1993.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.