00301nam a2200121 a 450000500170000002000150001708200150003210000190004724500390006625000120010526000360011730000260015320251203110750.0  a141290546X  a519.5bSIR  aSirkin, R Mark  aStatistics for the Social sciences  a3rd ed.  aLondonbSage Publicationsc2006  axxi, 609p.c24 cm. PB