Armaduras para iluminação interior / Siemens
Projectores DD (spotlights) / Philips Portuguesa S.A.R.L.
Electrical installation material / General Electric
General Electric lamps : a condensed text on the design and operation of incandescent, mercury and fluorescent light sources / C. E. Weitz
American electricians' handbook : a reference book for pratical electrical workers / Terrell Croft
Mazda lamps : characteristics and applications of incandescent lamps-gaseous discharge, and fluorescent light sources / General Electric Company
Catalog of standard large mazda lamps / General Electric
Everything electrical / General Electric
O montador electricista / Luís de S. Oiva Júnior
Catalogue général des lampes Philips / Philips
Lâmpadas Osram : lista de tipos / OSRAM