Speaking of Apes : A Critical Anthology of Two-Way Communication with Man

by Sebeok, Thomas A., Umiker-Sebeok, Jean
Published 1980

I Think I Am a Verb : More Contributions to the Doctrine of Signs

by Sebeok, Thomas A.
Published 1986

Classics of Semiotics

Published 1987

The Semiotic Sphere

Published 1986