TY  - BOOK
AU  - Cassel,Claes -Magnus, Sarndal, Carl -Erik & Wretman, Jan Hakan
AU  - x
TI  - Foundations of inference in survey Sampling: x
SN  - 0471025631
U1  - 519.52/C344f 
PY  - 1977///
CY  - New York, London
PB  - Wiley
KW  - Sampling (Statistics)
KW  - Estimation theory
N1  - Includes
ER  -