Agrest, D., & Sebeok, T. A. (1977). A Perfusion of Signs. Indiana University Press.
Chicago-čujuhus (17. p.)Agrest, Diana, juo Thomas A. Sebeok. A Perfusion of Signs. Bloomington: Indiana University Press, 1977.
MLA-čujuhus (9. p.)Agrest, Diana, juo Thomas A. Sebeok. A Perfusion of Signs. Indiana University Press, 1977.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.