Underground workmen in mines of stratified ironstone, shale and fireclay including supplement for transport workers below ground.
Great Britain.Department of Trade and Industry.
London : H.M.S.O.,
1971.
At head of title: Ministry of Power Mines and Quarries Act 1954.
Bound with other "books prepared and designated by the Minister for the purposes of Section 137."
Great Britain.
Shale.
Mining law
Mine safety