Seidlhofer, B. (2011). Understanding English as a lingua franca. Oxford: Oxford University Press.
शिकागो स्टाइल उद्धरणSeidlhofer, Barbara. Understanding English As a Lingua Franca. Oxford: Oxford University Press, 2011.
एमएलए उद्धरणSeidlhofer, Barbara. Understanding English As a Lingua Franca. Oxford: Oxford University Press, 2011.
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