APA (7 वां संस्करण) प्रशस्ति पत्र
Hills, P. J. (1979). Teaching and learning as a communication process. Wiley.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Hills, P. J. Teaching and Learning as a Communication Process. New York: Wiley, 1979.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Hills, P. J. Teaching and Learning as a Communication Process. Wiley, 1979.
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