World Health Organization. (1996). Trace elements in human nutrition and health.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWorld Health Organization. Trace Elements in Human Nutrition and Health. 1996.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWorld Health Organization. Trace Elements in Human Nutrition and Health. 1996.
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