00520nam a2200133Ia 4500008004100000040001700041082002300058110003400081245009000115260003900205300001600244440007500260650005100335190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta338.9bA188E  aAction Society Trust (London) 4aThe Extent of centralisationba discussion based on a case study in the coal industry  aLondonbAction Society Trustc1951  a2Pts(V.p.).  aStudies in nationalised industry/ed. by Gordon Rattray Taylor; 6 and 7  aCoal mines and mining; Industrial productivity