Não informado. Philips Research Reports. Philips Gloeilampenfabrieken, Research Laboratory.
Chicago Style (17th ed.) CitationNão informado. Philips Research Reports. Eindhoven, Holanda: Philips Gloeilampenfabrieken, Research Laboratory.
MLA (8th ed.) CitationNão informado. Philips Research Reports. Philips Gloeilampenfabrieken, Research Laboratory.
Warning: These citations may not always be 100% accurate.