Não informado. (1946). English electric and its people. English Electric Company.
Chicago-viite (17. p.)Não informado. English Electric and Its People. Stanford, Conn: English Electric Company, 1946.
MLA-viite (8. p.)Não informado. English Electric and Its People. English Electric Company, 1946.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.