Não informado. (1966). International Review of Research in Mental Retardation. Academic Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. International Review of Research in Mental Retardation. New York: Academic Press, 1966.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. International Review of Research in Mental Retardation. Academic Press, 1966.
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