00449nam a2200133Ia 450000500170000000800460001703700290006304000200009204100130011208400240012524500920014926000550024165000190029620250508163316.0008  250505s9999    xx            000 0 eng d  aBooks to be hide in OPAC  aFEDLbengcFEDL  aeng2eng  a016.0014, EDUqFEDL 0aGeneralized variance functions for a complex sample survey: Program statistics research  aNew Jersey, USAbEducational Testing Servicec1986  aBibliographies