Não informado. (1952). Journal of mental subnormality. Midland Society of the Study of Mental Subnormality.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Journal of Mental Subnormality. Birmingham, Inglaterra: Midland Society of the Study of Mental Subnormality, 1952.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Journal of Mental Subnormality. Midland Society of the Study of Mental Subnormality, 1952.
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