00358nam a2200121Ia 4500082002000000100004100020245004200061260003600103300002300139490003700162500000500199700003200204  a519.52bB847.SU  aBrewer, K. R. W. and Hanif, Muhammad  aSampling with unequal probabilitiesb  aNew YorkbSpringer-Verlagc1983  a164p. Index, Bibl.  aLecture notes in Statisticsv 15  a  aHanif, Muhammad ; jt. auth.