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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThe Adult University. Society for Research into Higher Education & Open University Press, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रThe Adult University. Society for Research into Higher Education & Open University Press, 1999.
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