APA (7 वां संस्करण) प्रशस्ति पत्र

Não informado. (1937). Harvard Educational Review. Harvard University, Graduate School of Education.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Não informado. Harvard Educational Review. Cambridge, Mass: Harvard University, Graduate School of Education, 1937.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Não informado. Harvard Educational Review. Harvard University, Graduate School of Education, 1937.

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