Reports of H.M. Inspectors of Mines and Quarries under the Mines and Quarries Act, 1954.
Great Britain.Mines and Quarries Inspectorate.
Great Britain.Ministry of Power.
Great Britain.Ministry of Technology.
London : H.M. Stationery Off.,
Issued by: Ministry of Power, -1968 ; Ministry of Technology, 1969.
Mine inspection
Mines and mineral resources