Dyfyniad APA

ebrary, Inc, Eco, U., & Marmo, C. (1989). On the medieval theory of signs. J. Benjamins.

Dyfyniad Arddull Chicago

ebrary, Inc, Umberto Eco, and Costantino Marmo. On the Medieval Theory of Signs. Amsterdam ; Philadelphia: J. Benjamins, 1989.

Dyfyniad MLA

ebrary, Inc, et al. On the Medieval Theory of Signs. J. Benjamins, 1989.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.