Não informado. (1959). Electrical and Mechanical Engineering Transactions. Institution of Engineers.
Lua i Stíl Chicago (17ú heag.)Não informado. Electrical and Mechanical Engineering Transactions. Sydney, Australia: Institution of Engineers, 1959.
Lua MLA (8ú heag.)Não informado. Electrical and Mechanical Engineering Transactions. Institution of Engineers, 1959.
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