Não informado. (1946). Machinist. International Association of Machinists and Aerospace Workers.
Lua i Stíl Chicago (17ú heag.)Não informado. Machinist. Washington: International Association of Machinists and Aerospace Workers, 1946.
Lua MLA (8ú heag.)Não informado. Machinist. International Association of Machinists and Aerospace Workers, 1946.
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