APA (7 वां संस्करण) प्रशस्ति पत्र

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.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Ponzio, Augusto, और 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.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Ponzio, Augusto, और 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.

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