Não informado. Electrical developments. General Electric, National Lamp Works, Lamp Department.
Style de citation Chicago (17e éd.)Não informado. Electrical Developments. New York: General Electric, National Lamp Works, Lamp Department.
Style de citation MLA (8e éd.)Não informado. Electrical Developments. General Electric, National Lamp Works, Lamp Department.
Attention : ces citations peuvent ne pas être correctes à 100%.