TY  - BOOK
AU  - Hansen,Morris H.
AU  - Williams N. Hurwitz 
AU  - William G. Madow
TI  - Sample Survey Methods and Theory: volume 1 methods and applications 
U1  - 001.433 22
PY  - 1953///
CY  - New York
PB  - John Wiley
KW  - Sample survey
KW  - Methods and theory
KW  - Research methodology
N1  - Includes index (p. 627-638)
ER  -