Não informado. (1936). Child. Childrens Bureau, Department of Health, Education and Welfare.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Child. Washington: Childrens Bureau, Department of Health, Education and Welfare, 1936.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Child. Childrens Bureau, Department of Health, Education and Welfare, 1936.
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