00398nam a2200133 a 450000500170000010000240001724500540004126000380009530000280013396400160016199700180017799900170019595200520021220251203092231.0  aChandra, Durgeshd_  aQuality circlesbgrowing big through small groups  aNew DelhibTata MaGraw Hillc1992  aviii, 213 p,c24 cmbPB  bcdefg_  a69579 LIBSS C  c68829d68829  00104070aPUbPUd2000-10-25l0o p69579yBK