Não informado. (1981). Bibliography of acute diarrhoeal diseases. National Library of Medicine.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Bibliography of Acute Diarrhoeal Diseases. Geneva, Suíça: National Library of Medicine, 1981.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Bibliography of Acute Diarrhoeal Diseases. National Library of Medicine, 1981.
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