E. P. Karpova & L. I. Usenya. (2012). MODERN APPROACH TO TREATMENT OF ACUTE OTITIS MEDIA IN CHILDREN. "Paediatrician" Publishers LLC.
Chicago-viite (17. p.)E. P. Karpova ja L. I. Usenya. MODERN APPROACH TO TREATMENT OF ACUTE OTITIS MEDIA IN CHILDREN. "Paediatrician" Publishers LLC, 2012.
MLA-viite (9. p.)E. P. Karpova ja L. I. Usenya. MODERN APPROACH TO TREATMENT OF ACUTE OTITIS MEDIA IN CHILDREN. "Paediatrician" Publishers LLC, 2012.
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