Citace podle APA (7th ed.)

Não informado. Electrical developments. General Electric, National Lamp Works, Lamp Department.

Citace podle Chicago (17th ed.)

Não informado. Electrical Developments. New York: General Electric, National Lamp Works, Lamp Department.

Citace podle MLA (8th ed.)

Não informado. Electrical Developments. General Electric, National Lamp Works, Lamp Department.

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