APA-referens (7:e uppl.)

Harris, J. C. (2006). Intellectual disability: Understanding its development, causes, classification, evaluation, and treatment. Oxford University Press.

Chicago-referens (17:e uppl.)

Harris, James C. Intellectual Disability: Understanding Its Development, Causes, Classification, Evaluation, and Treatment. New York: Oxford University Press, 2006.

MLA-referens (9:e uppl.)

Harris, James C. Intellectual Disability: Understanding Its Development, Causes, Classification, Evaluation, and Treatment. Oxford University Press, 2006.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.