TY  - BOOK
AU  - Hansen, Morris H.
AU  - Hurwitz, William N.
AU  - Madow, William G.
TI  - Sample survey methods and theory Vol.1: Methods and applications 
U1  - 519.52   
PY  - 1953///
CY  - London
PB  - John Wiley  & Sons
KW  - Probabilities
KW  - Applied Mathematics
KW  - Theory Of Sampling
ER  -