Não informado. (1919). Electrical Power Engineer. Electrical Power Engineers Association.
Chicago-Zitierstil (17. Ausg.)Não informado. Electrical Power Engineer. Chertsey, Inglaterra: Electrical Power Engineers Association, 1919.
MLA-Zitierstil (8. Ausg.)Não informado. Electrical Power Engineer. Electrical Power Engineers Association, 1919.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.