APA (7 वां संस्करण) प्रशस्ति पत्र

Não informado. (1980). New Directions for Teaching and Learning. Jessey Bass Publishers.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Não informado. New Directions for Teaching and Learning. San Francisco, Calif: Jessey Bass Publishers, 1980.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Não informado. New Directions for Teaching and Learning. Jessey Bass Publishers, 1980.

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