Não informado. (1919). Electrical Power Engineer. Electrical Power Engineers Association.
Cita Chicago Style (17a ed.)Não informado. Electrical Power Engineer. Chertsey, Inglaterra: Electrical Power Engineers Association, 1919.
Cita MLA (8a ed.)Não informado. Electrical Power Engineer. Electrical Power Engineers Association, 1919.
Precaución: Estas citas no son 100% exactas.