found: Souza, E. de. Hist. da Light, 1982:p. 10 (Grupo Light) p. 11 (name changed to Eletropaulo [Eletricidade de São Paulo S.A.] around 1981) p. 27 (São Paulo Railway, Light & Power Co., ltd. [called Light for short, throughout its hist.]) p. 40 (called also São Paulo Tramway, Light, & Power Co., ltd.) p. 160 (additional variants: São Paulo Light, Grupo São Paulo Light)
found: LC data base, 8-5-85(hdg.: São Paulo Tramway, Light and Power Company, ltd.)
found: Grande encic. Delta Larousse(Light; Light-Serviços de Eletricidade S.A.; Grupo Light; originally and simultaneously called: São Paulo Railway, Light & Power Co., ltd. or, later, São Paulo Tramway, Light, & Power Co., ltd.)
found: A série Veneza, 1998:t.p. (Light) last p. (Light Serviços de Eletricidade)
found: Planta de Mogí das Cruzes ... 1963:maps recto (São Paulo Light S.A.)