APA (7th ed.) Citation

Sebeok, T. A. (1986). I think I am a verb: More contributions to the doctrine of signs. Plenum Press.

Chicago Style (17th ed.) Citation

Sebeok, Thomas Albert. I Think I Am a Verb: More Contributions to the Doctrine of Signs. New York: Plenum Press, 1986.

MLA (9th ed.) Citation

Sebeok, Thomas Albert. I Think I Am a Verb: More Contributions to the Doctrine of Signs. Plenum Press, 1986.