Não informado. (1901). Electrical Industries Export. Continental and Overseas Organizations.
Chicago-referens (17:e uppl.)Não informado. Electrical Industries Export. London: Continental and Overseas Organizations, 1901.
MLA-referens (8:e uppl.)Não informado. Electrical Industries Export. Continental and Overseas Organizations, 1901.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.