Leavell, H. R. (1951). Report of the Chairman of the Executive Board of the American Public Health Association to the Governing Council, 1949-1950.
Chicago-tyylinen lähdeviittausLeavell, Hugh R. Report of the Chairman of the Executive Board of the American Public Health Association to the Governing Council, 1949-1950. 1951.
MLA-viiteLeavell, Hugh R. Report of the Chairman of the Executive Board of the American Public Health Association to the Governing Council, 1949-1950. 1951.
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