APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

Sebeok, Thomas A., et al. A Perfusion of Signs. Indiana University Press, 1977.