Search for: [Subject and Keywords = gold] OR [Subject and Keywords = deposits] OR [Subject and Keywords = metallurgy] OR [Subject and Keywords = United States] OR [Subject and Keywords = Złoto \-\- złoża \-\- Stany Zjednoczone \[KABA\]] OR [Subject and Keywords = Metalurgia \-\- Stany Zjednoczone \-\- 19 w. \[KABA\]] OR [Title = Die Metall\-Produktion Californiens und der angrenzenden Länder \: Mittheilungen von den pacifischen Küstenländern Nord\-Amerika's] OR [Creator = Richthofen, Ferdinand von \(1833–1905\)]