International Society on Early Intervention. (1988). Infants and Young Children. Aspen Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रInternational Society on Early Intervention. Infants and Young Children. Frederick, Md: Aspen Publishers, 1988.
एमएलए (8वां संस्करण) प्रशस्ति पत्रInternational Society on Early Intervention. Infants and Young Children. Aspen Publishers, 1988.
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