Lua APA (7ú heag.)
Ponzio, A., & Petrilli, S. (1990). Man as a sign: Essays on the philosophy of language. Mouton de Gruyter.
Lua i Stíl Chicago (17ú heag.)
Ponzio, Augusto, agus Susan Petrilli. Man as a Sign: Essays on the Philosophy of Language. Berlin ; New York: Mouton de Gruyter, 1990.
Lua MLA (9ú heag.)
Ponzio, Augusto, agus Susan Petrilli. Man as a Sign: Essays on the Philosophy of Language. Mouton de Gruyter, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.