Leavell, H. R. (1950). Report of the Chairman of the Executive Board of the American Public Health Association to the Governing Council 1948-1949.
Παραπομπή Chicago StyleLeavell, Hugh R. Report of the Chairman of the Executive Board of the American Public Health Association to the Governing Council 1948-1949. 1950.
Παραπομπή MLALeavell, Hugh R. Report of the Chairman of the Executive Board of the American Public Health Association to the Governing Council 1948-1949. 1950.
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