Não informado. (1973). Steel Today & Tomorrow. Japan Iron & Steel Exporters' Association.
Chicago-referens (17:e uppl.)Não informado. Steel Today & Tomorrow. Tokyo: Japan Iron & Steel Exporters' Association, 1973.
MLA-referens (8:e uppl.)Não informado. Steel Today & Tomorrow. Japan Iron & Steel Exporters' Association, 1973.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.