World Health Organization. (2009). Application of epidemiological principles for Public health action. World Health Organization.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWorld Health Organization. Application of Epidemiological Principles for Public Health Action. New Delhi: World Health Organization, 2009.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWorld Health Organization. Application of Epidemiological Principles for Public Health Action. World Health Organization, 2009.
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