00313nam a2200109Ia 4500082001700000100002100017245005100038260003100089300001000120650004200130650003100172  a300.72 WEI-;  aWeiss, Robert S. 0aStatistics in social research: an introduction  aNew YorkbJohn Wileyc1968  a369p.  aSocial sciences - Statistical methods  aSocial sciences - Research