Wyman, W. (1892). Measures Taken by the United States Marine Hospital Service to Prevent the Introduction of Cholera.
Chicago-tyylinen lähdeviittausWyman, Walter. Measures Taken By the United States Marine Hospital Service to Prevent the Introduction of Cholera. 1892.
MLA-viiteWyman, Walter. Measures Taken By the United States Marine Hospital Service to Prevent the Introduction of Cholera. 1892.
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