Sinclair, John

Coal preparation and power supply at collieries Sinclair, John 1962 Coal-mining economic Sinclair, john 1957 Coal-Mining economics Sinclair, John 1957 Coal-mining economics: organization and management Sinclair, John 1967 Collins cobuild English guides 2 Sinclair, John Year not listed Collins cobuild student's dictionary Sinclair, John 1990 Enviromental Condition In Coal Mining Sinclair, John 1958 Environmental conditions in coal mines Sinclair, john 1958 Environmental Conditions in Coal Mines Sinclair John 1958 Environmental conditions in coal mines Sinclair, john 1958 Geological aspects of mining Sinclair, John 1958 Geological aspects of mining Sinclair, John 1958 Geological aspects of mining Sinclair, John 1958 Ground movement and control at collieries Sinclair, John 1963 Ground Movement and Control at Collieries Sinclair John Year not listed Plain English dictionary Sinclair, John 1996 Planning and mechanized drifting at collieries Sinclair, John 1963 Quarrying, opencast and alluvial mining Sinclair, John 1969 Water in Mines and Mine Pumps Sinclair John 1958 Winding and transport in mines Sinclair, John 1959