Não informado. (2008). Report of the Commissioner of Health of Porto Rico. Bureau of Insular Affairs.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Report of the Commissioner of Health of Porto Rico. Washington: Bureau of Insular Affairs, 2008.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Report of the Commissioner of Health of Porto Rico. Bureau of Insular Affairs, 2008.
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