TY  - BOOK
AU  - Hansen, Morris Howard,
TI  - Sample survey methods and theory
T2  - Wiley publication in mathematical statistics
AV  - QA276 H33
PY  - 1960///c1953
CY  - New York
PB  - J. Wiley
KW  - Muestreo (Estadística)
N1  - V. 1. methods and applications.-- v. 2. theory
ER  -