00277    a2200109   4500020001500000082001700015100002400032245004200056260002900098300002000127650002000147  a0761916407  a300.723bPET  aPeterson, Robert A.  aConstructing effective questionnaires  aLondonbSagec2000g2000  avii,143p.c25cm  aSocial sciences