Surface workmen at coal mines including boiler minders, persons in charge of ventilating machines and persons in charge of vehicles or otherwise working on main line sidings /
Great Britain.Ministry of Power.
London : H.M.S.O.,
1961.
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.
Coal mines and mining
Coal mines and mining
Mine safety