Langer Heinrich: Desert riches
págs. 13-16
Surface coal haulage: in for the long haul
págs. 22-27
Underground coal haulage: Section by section
págs. 29-37
Surface drilling: Rotary versus crawler
págs. 39-51
African copper: The new copper club
págs. 53-61
Slope stability: Checking slope stability
págs. 63-67
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