TY  - BOOK
AU  - Hansen, Morris H.
TI  - Sample survey methods and theory
T2  - Contents: Vol 2: Theory
U1  - 311.213.2 J3.2 
PY  - 1953///
CY  - New York
PB  - Chapman & Hall
KW  -  Morris H. Hansen
KW  - Sample survey,Survey methods,Statistics
ER  -