TY  - BOOK
AU  - Hansen,Morris H., Hurwitz, William N.
AU  - x
TI  - Sample survey methods and theory: x
SN  - x
U1  - 311.21/HAS 
PY  - 1966///
CY  - N.Y.
PB  - Wiley
KW  - Statistics
N1  - x
ER  -