Sydes, J. (2005). Tech talk: Pre-intermediate. Workbook. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSydes, John. Tech Talk: Pre-intermediate. Workbook. Oxford: Oxford University Press, 2005.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSydes, John. Tech Talk: Pre-intermediate. Workbook. Oxford University Press, 2005.
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