Não informado. (1946). English electric and its people. English Electric Company.
Chicago-referens (17:e uppl.)Não informado. English Electric and Its People. Stanford, Conn: English Electric Company, 1946.
MLA-referens (8:e uppl.)Não informado. English Electric and Its People. English Electric Company, 1946.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.