00319cam a22000977a 4500008004000000082001600040245007800056260005100134300000800185700002800193180718b1963   xxu||||| |||| 00| 0 eng d  aR641x42 Un3  aAccidents: how they happen and how to prevent themcby Ministry of Labour  aLondonbHer Majesty's Statuionery Officec1963  a51p  aU.K. Ministry of Labour