Não informado. (1952). Power Apparatus and Systems. American Institute of Electrical Engineers.
Lua i Stíl Chicago (17ú heag.)Não informado. Power Apparatus and Systems. New York: American Institute of Electrical Engineers, 1952.
Lua MLA (8ú heag.)Não informado. Power Apparatus and Systems. American Institute of Electrical Engineers, 1952.
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