Não informado. (1968). Gold bulletin: Research on gold ant its applications in industry. International Gold Corporation.
Chicago-referens (17:e uppl.)Não informado. Gold Bulletin: Research on Gold Ant Its Applications in Industry. Marshalltown, Africa do Sul: International Gold Corporation, 1968.
MLA-referens (8:e uppl.)Não informado. Gold Bulletin: Research on Gold Ant Its Applications in Industry. International Gold Corporation, 1968.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.