TY  - BOOK
AU  - Cochran, William Gemmell,
TI  - Sampling techniques
T2  - Wiley series in probability and mathematical statistics - applied
SN  - 047116240x
AV  - QA276.5 C6 1977
PY  - 1977///
CY  - New York, London
PB  - J. Wiley
KW  - Muestreo (Estadística)
ER  -