"Tubes à vide." . . "Éclairage électrique." . . "Luminotecnia." . . . . "Lighting." . . . . . . . . . . "Luminous tube lighting dealing with the principles of the luminous tube" . "Luminous tube lighting : dealing with the principles of the luminous tube, with a summary of the materials and equipment involved, and technical data concerning discharge-tube light sources, by Henry A. Miller" . . "Luminous tube lighting : dealing with the principles of the luminous tube, with a summary of the materials and equipment involved, and technical data concerning discharge-tube light sources"@en . . . . . . "Luminous tube lighting" . "Luminous tube lighting"@en . . . "Luminous tube lighting : dealing with the principles of the luminous tube, with a summary of the materials and equipment involved, and technical data concernig discharge-tube light sources" . . . . "Luminous tube lighting, dealing with the principles of the luminous tube" . . "Luminous Tube Lighting : Dealing with the principles of the Luminous Tube, with a Summary of the Materials and Equipment involved, and Technical Data concerning Discharge-Tube Light Sources" . . . . . . . "Luminous tube lighting dealing with the principles of the luminous tube, with a summary of the materials and equipment involved, and technical data concerning discharge-tube light sources"@en . . . "Luminous tube lighting, dealing with the principles of the luminous tube, with a summary of the materials and equipment involved, and technical data concerning discharge-tube light sources" . . . . "Electric lighting." . . "Fluorescència." . . "Vacuum-tubes." . .