Não informado. (1964). Influenza: An annotated bibliography. Library of the College of Physicians, Medical Documentation Service.
Citace podle Chicago (17th ed.)Não informado. Influenza: An Annotated Bibliography. Philadelphia, Pa: Library of the College of Physicians, Medical Documentation Service, 1964.
Citace podle MLA (8th ed.)Não informado. Influenza: An Annotated Bibliography. Library of the College of Physicians, Medical Documentation Service, 1964.
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