TY  - BOOK
AU  - Hansen, Morris H.
TI  - Sample survey methods and theory: Methods and applications
SN  -  0471309672
U1  - 519.52 HAN-S STA. 13467Sc 
PY  - 1953///
CY  - New York.
PB  - John Wiley & Sons, Inc.
N1  - Index
ER  -