Irvine, M., & Cadman, M. (1999). Commercially speaking: Teacher's book. Oxford: Oxford University Press.
शिकागो स्टाइल उद्धरणIrvine, Mark., और Marion Cadman. Commercially Speaking: Teacher's Book. Oxford: Oxford University Press, 1999.
एमएलए उद्धरणIrvine, Mark., और Marion Cadman. Commercially Speaking: Teacher's Book. Oxford: Oxford University Press, 1999.
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