Não informado. (1978). Journal for special educators. American Association of Special Educators.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Journal for Special Educators. New York: American Association of Special Educators, 1978.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Journal for Special Educators. American Association of Special Educators, 1978.
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