Não informado. (2001). American Journal of Public Health: Supplement. American Public Health Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. American Journal of Public Health: Supplement. Washington: American Public Health Association, 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. American Journal of Public Health: Supplement. American Public Health Association, 2001.
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