Froman, R. (1970). Science, art, and visual illusions. Siman and Schuster.
Chicago-čujuhus (17. p.)Froman, Robert. Science, Art, and Visual Illusions. New York: Siman and Schuster, 1970.
MLA-čujuhus (9. p.)Froman, Robert. Science, Art, and Visual Illusions. Siman and Schuster, 1970.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.