Ponzio, A., & Petrilli, S. (1990). Man as a sign: Essays on the philosophy of language / ba Augusto Ponzio. Transl. from the Ital. and ed. by Susan Petrilli. Mouton de Gruyter.

Ponzio, Augusto, and Susan Petrilli. Man as a Sign: Essays on the Philosophy of Language / Ba Augusto Ponzio. Transl. from the Ital. and Ed. by Susan Petrilli. Berlin [u.a.]: Mouton de Gruyter, 1990.

Ponzio, Augusto, and Susan Petrilli. Man as a Sign: Essays on the Philosophy of Language / Ba Augusto Ponzio. Transl. from the Ital. and Ed. by Susan Petrilli. Mouton de Gruyter, 1990.