Electric waves being researches on the propagation of electric action with finite velocity through space / Heinrich Hertz; D. E. Jones, Lord Kelvin
Circuitos y cables eléctricos : Esquemas e descriptiones / Enrique C. Hortsmann; Victor H. Tousley, D. Ramiro Pascua
El transformador de corriente alterna : teoría y cálculo / C. P. Steinmetz; Eduardo Rivera Ruiz
Report of plenary meetings held June, 1935 / International Electrotechnical Commission