Mare C. de la Christina. (2017). Insight. Intermediate: Teacher's book. Oxford, Oxford University Press, 2017.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMare C. de la Christina. Insight. Intermediate: Teacher's Book. Oxford, Oxford University Press, 2017, 2017.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMare C. de la Christina. Insight. Intermediate: Teacher's Book. Oxford, Oxford University Press, 2017, 2017.
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