Não informado. (1901). Electrical Industries Export. Continental and Overseas Organizations.
Chicago-viite (17. p.)Não informado. Electrical Industries Export. London: Continental and Overseas Organizations, 1901.
MLA-viite (8. p.)Não informado. Electrical Industries Export. Continental and Overseas Organizations, 1901.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.