Eco, U., & Marmo, C. (1989). On the Medieval theory of signs. J. Benjamin.
Chicago Style (17th ed.) CitationEco, Umberto, and Costantino Marmo. On the Medieval Theory of Signs. J. Benjamin, 1989.
MLA (8th ed.) CitationEco, Umberto, and Costantino Marmo. On the Medieval Theory of Signs. J. Benjamin, 1989.
Warning: These citations may not always be 100% accurate.