APA (7th ed.) Citation

Sebeok, T. A., & Smith, I. (1991). American signatures: Semiotic inquiry and method. University of Oklahoma Press.

Chicago Style (17th ed.) Citation

Sebeok, Thomas A., and Iris Smith. American Signatures: Semiotic Inquiry and Method. Norman (USA) [etc.]: University of Oklahoma Press, 1991.

MLA (9th ed.) Citation

Sebeok, Thomas A., and Iris Smith. American Signatures: Semiotic Inquiry and Method. University of Oklahoma Press, 1991.