Não informado. (1963). Mental Retardation. American Association on Mental Deficiency.
Style de citation Chicago (17e éd.)Não informado. Mental Retardation. Washington: American Association on Mental Deficiency, 1963.
Style de citation MLA (8e éd.)Não informado. Mental Retardation. American Association on Mental Deficiency, 1963.
Attention : ces citations peuvent ne pas être correctes à 100%.