Não informado. (1941). Westinghouse engineer. Westinghouse Electric and Manufacturing Company.
Lua i Stíl Chicago (17ú heag.)Não informado. Westinghouse Engineer. Pittsburgh, Pa: Westinghouse Electric and Manufacturing Company, 1941.
Lua MLA (8ú heag.)Não informado. Westinghouse Engineer. Westinghouse Electric and Manufacturing Company, 1941.
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