TY  - BOOK
AU  - Cochran, William G.
TI  - Sampling techniques
SN  - 0471029394
U1  - 001.4222 
PY  - 1977///
CY  - New York: 
PB  - John Wiley and Sons, Inc.
KW  - cluster sampling
KW  - double sampling
KW  - percentages
KW  - proportion
KW  - random sampling
KW  - ratio estimators
KW  - regression estimators
KW  - sample size
KW  - stratified sampling
KW  - subsampling
KW  - systematic sampling
ER  -