Perry, J. (1993). The problem of the essential indexical: And other essays. Oxford University Press.
Chicago-čujuhus (17. p.)Perry, John. The Problem of the Essential Indexical: And Other Essays. New York: Oxford University Press, 1993.
MLA-čujuhus (9. p.)Perry, John. The Problem of the Essential Indexical: And Other Essays. Oxford University Press, 1993.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.