Underground workmen in mines of stratified ironstone, shale and fireclay including supplement for transport workers.
Great Britain.Ministry of Power.
London : H.M.S.O.,
1958.
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