00301nam a2200109Ia 4500008004100000020001500041082002100056245002000077260005600097300001300153700002500166161229s9999    xx            000 0 und d  a8120402359  a658.401 3 MAH/QU  aQuality circles  bOxford & IBH publishing co pvt ltdaNew Delhic1987  avii, 148  aMaheshwari, B L ,ed.