Não informado. (1928). American Journal of Public Health and the Nation's Health. American Public Health Association.
Citace podle Chicago (17th ed.)Não informado. American Journal of Public Health and the Nation's Health. New York: American Public Health Association, 1928.
Citace podle MLA (8th ed.)Não informado. American Journal of Public Health and the Nation's Health. American Public Health Association, 1928.
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