Não informado. (1954). Light. General Electric Company, Lamp Division.
Chicago-viite (17. p.)Não informado. Light. Cleveland, Ohio: General Electric Company, Lamp Division, 1954.
MLA-viite (8. p.)Não informado. Light. General Electric Company, Lamp Division, 1954.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.