Não informado. (1955). A.M.A. Archives of Industrial Health. American Medical Association.
Lua i Stíl Chicago (17ú heag.)Não informado. A.M.A. Archives of Industrial Health. Chicago, Ill: American Medical Association, 1955.
Lua MLA (8ú heag.)Não informado. A.M.A. Archives of Industrial Health. American Medical Association, 1955.
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