Report on further mechanisation of the Rio Turbio coal mines, Santa CruzMechanisation of the Rio Turbio Coal Mines, Santa Cruz Powell Duffryn Technical ServicesReino Unido. Ministry of Overseas Development; Argentina. Gobierno; |
Report on the viability of the coal production programme of the Yacimientos Carboníferos FiscalesViability of the Coal Production Programme of the Yacimientos Carboníferos Fiscales Powell Duffryn Technical ServicesReino Unido. MInistry of Overseas Development; Argentina. Gobierno; |