00270nam a2200121Ia 4500100001400000650001200014654002000026245002900046260003800075082001500113300000800128546001200136  aUdpa/S.R   aGeneral  aQuality circles  aQuality circles In India  bTata McGraw HillaNEW DELHIc1986  a658.5bUdp  a216  aENGLISH