00504nam a2200169 a 450000500170000002000150001708200130003210000210004524500750006626000340014130000200017569000250019596400210022099700180024199900170025995200580027620251203091611.0  a0745601723  a58868b_  aMarsh, Catherine  aExploring data: an introduction to data analysis for Social scientists  aCambridge: Polity Pressc1988  axx, 385p.c23cm  aStatistical analysis  bEngcdefgPUL  a58868 LIBSS C  c45920d45920  00104070aPUbPUd1998-04-08l0o58868 _p58868yBK