Não informado. (1953). British Journal of Preventive and Social Medicine. British Medical Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. British Journal of Preventive and Social Medicine. London: British Medical Association, 1953.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. British Journal of Preventive and Social Medicine. British Medical Association, 1953.
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