TY  - BOOK
AU  - Brewer K R W
AU  -  Muhammad Hanif
TI  - Sampling with unequal probabilities
T2  - Lecture notes in statistics; 15
U1  - B2817, M3-;1 
PY  - 1983///
CY  - New York    
PB  -  Springer Verlag       
KW  - probabilities
ER  -