TY  - GEN
AU  - Hansen, Morris H.
AU  - Hurwitz, William N.: Madow, William G.
TI  - Sample survey methods and theory:  
U1  - 519.901 
PY  - 1953///
CY  - London

PB  - John Wiley & Sons
KW  - Mathematice
KW  - sample survey methods
KW  - sample survey theory
ER  -