Iron ore reserves of lake superior and minas geraes.
Iron ore reserves of lake superior and minas geraes.
- London-GB : The mining journal, 1913.
- página 1069 : ilustraciones blanco y negro
- Irregular
- Vol. CIII, no.4081 (Nov. 1913)
- The mining journal, Raiway & commercial gazette ; no.4081 .
- The mining journal. .