Gregory, R. L. (1990). Eye and Brain: The Psychology of Seeing (4th ed.). Princeton University Press.
Chicago-čujuhus (17. p.)Gregory, Richard L. Eye and Brain: The Psychology of Seeing. 4th ed. New Jersey: Princeton University Press, 1990.
MLA-čujuhus (9. p.)Gregory, Richard L. Eye and Brain: The Psychology of Seeing. 4th ed. Princeton University Press, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.