Cita APA (7th ed.)

Agrest, D., & Sebeok, T. A. (1977). A Perfusion of Signs. Indiana University Press.

Cita Chicago (17th ed.)

Agrest, Diana, i Thomas A. Sebeok. A Perfusion of Signs. Bloomington: Indiana University Press, 1977.

Cita MLA (9th ed.)

Agrest, Diana, i Thomas A. Sebeok. A Perfusion of Signs. Indiana University Press, 1977.