Khan, K. (1999). Our duty lasts until the end of life. British Medical Journal.
शिकागो स्टाइल उद्धरणKhan, Khalid. Our Duty Lasts Until the End of Life. British Medical Journal, 1999.
एमएलए उद्धरणKhan, Khalid. Our Duty Lasts Until the End of Life. British Medical Journal, 1999.
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