APA (7 वां संस्करण) प्रशस्ति पत्र
Harris, J. C. (2006). Intellectual disability: Understanding its development, causes, classification, evaluation, and treatment. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Harris, James C. Intellectual Disability: Understanding Its Development, Causes, Classification, Evaluation, and Treatment. New York: Oxford University Press, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Harris, James C. Intellectual Disability: Understanding Its Development, Causes, Classification, Evaluation, and Treatment. Oxford University Press, 2006.
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