Siemens, G. (1957). History of the house of Siemens. Alber.
Lua i Stíl Chicago (17ú heag.)Siemens, Georg. History of the House of Siemens. Freiburg/Munchen: Alber, 1957.
Lua MLA (8ú heag.)Siemens, Georg. History of the House of Siemens. Alber, 1957.
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