TY  - BOOK
AU  - Hansen Morris, H et al.
TI  - Sample survey methods and theory, Vol.1
U1  - 330.0212  HAN-S.1 
PY  - 1953///
CY  - John Wiley & Sons Inc., 
PB  - New York
KW  - Economic statistics
N1  - Vol 1
ER  -