General Electric Company. (1943). Modo de conservar el material electrico. [s.n.].
Chicago Style (17th ed.) CitationGeneral Electric Company. Modo De Conservar El Material Electrico. Schenectady, N.Y: [s.n.], 1943.
MLA (9th ed.) CitationGeneral Electric Company. Modo De Conservar El Material Electrico. [s.n.], 1943.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.