APA (7 वां संस्करण) प्रशस्ति पत्र

PEI, M. (2021). Voices of man: The meaning and function of language. Routledge.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

PEI, MARIO. Voices of Man: The Meaning and Function of Language. [S.l.]: Routledge, 2021.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

PEI, MARIO. Voices of Man: The Meaning and Function of Language. Routledge, 2021.