00287    a2200109   4500020001500000082001700015100002100032245005500053260002900108300002000137650002000157  a0761953531  a300.723bBLA  aBlack. Thomas R.  aDoing quantitative research in the social sciences  aLondonbSAGEc1999g1999  axiv,751p.c24cm  aSocial Sciences