Various. Encyclopaedia Britannica, 11th Edition, "Conduction, Electric" Volume 6, Slice 8.
Cita Chicago (17th ed.)Various. Encyclopaedia Britannica, 11th Edition, "Conduction, Electric" Volume 6, Slice 8.
Cita MLA (9th ed.)Various. Encyclopaedia Britannica, 11th Edition, "Conduction, Electric" Volume 6, Slice 8.
Atenció: Aquestes cites poden no estar 100% correctes.