Não informado. (1937). Beama journal. British Electrical and Allied Manufacturers Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Beama Journal. London: British Electrical and Allied Manufacturers Association, 1937.
Lua MLA (8ú heag.)Não informado. Beama Journal. British Electrical and Allied Manufacturers Association, 1937.
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