Não informado. (1911). Oral Health. Southam Information and Technology Group.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Oral Health. Don Mills, Canada: Southam Information and Technology Group, 1911.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Oral Health. Southam Information and Technology Group, 1911.
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