Não informado. (1964). MENTAL RETARDATION ABSTRACTS. National Clearinghouse for Mental Health Information.
Style de citation Chicago (17e éd.)Não informado. MENTAL RETARDATION ABSTRACTS. Bethesda, Md: National Clearinghouse for Mental Health Information, 1964.
Style de citation MLA (8e éd.)Não informado. MENTAL RETARDATION ABSTRACTS. National Clearinghouse for Mental Health Information, 1964.
Attention : ces citations peuvent ne pas être correctes à 100%.