Othon Henry Leonardos

Othon Henry Leonardos · Forum

344 sayfa · 1970

Mines and mineral resources / Description and travel / Geology

Othon Henry Leonardos · Yayınevi bilinmiyor

116 sayfa · 1934

Lead mines and mining / Silver mines and mining

Othon Henry Leonardos · Yayınevi bilinmiyor

47 sayfa · 1934

Lead mines and mining / Silver mines and mining

Othon Henry Leonardos · Yayınevi bilinmiyor

56 sayfa · 1936

Tantalum / Niobium / Uranium / Radium / Mines and mineral resources

Othon Henry Leonardos · Directoria de estatistica da produção, Secção de publicidade

65 sayfa · 1938

Iron ores

Othon Henry Leonardos · Directoria de estatística da producção, Secção de publicidade

20 sayfa · 1934

Barium

Othon Henry Leonardos · Yayınevi bilinmiyor

30 sayfa · 1956

Carbonatites / Apatite / Pyrochlore

Othon Henry Leonardos · Yayınevi bilinmiyor

31 sayfa · 1956

Copper / Copper mines and mining

Othon Henry Leonardos · Yayınevi bilinmiyor

16 sayfa · 1937

Diamond mines and mining

Othon Henry Leonardos · Yayınevi bilinmiyor

14 sayfa · 1937

Iron mines and mining

Othon Henry Leonardos · Forum

343 sayfa · 1970

Mines and mineral resources / Description and travel / Geology

Fernando Flávio Marques de Almeida, Othon Henry Leonardos, J. Valença · International Union of Geological Sciences, Committee for the Study of Geological Documentation

41 sayfa · 1971

Granite

Henry O. A. Meyer, Othon Henry Leonardos, Companhia de Pesquisa de Recursos Minerais, Brazil) International Kimberlite Conference (5th 1991 Araxá · Conselho Nacional de Desenvolvimento Cientifico e Tecnológico

Sayfa sayısı yok · 1994

Kimberlite / Congresses / Diamonds