Michael Duckworth. (1998). Going international English for tourism (Workbook). Oxford: Oxford Univ. Press.
शिकागो स्टाइल उद्धरणMichael Duckworth. Going International English for Tourism (Workbook). Oxford: Oxford Univ. Press, 1998.
एमएलए उद्धरणMichael Duckworth. Going International English for Tourism (Workbook). Oxford: Oxford Univ. Press, 1998.
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