Halsey, E. (2025). CDC yellow book 2026: Health information for international travel. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHalsey, Eric. CDC Yellow Book 2026: Health Information for International Travel. New York: Oxford University Press, 2025.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHalsey, Eric. CDC Yellow Book 2026: Health Information for International Travel. Oxford University Press, 2025.
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