TY  - BOOK
AU  - Cochran,William G
TI  - Sampling Techniques
SN  - 9788126515240
U1  - 519.52 
PY  - 1999///
CY  - New Delhi
PB  - Wily India Pvt Ltd.
KW  - Sampling
KW  - Simple random sampling
KW  - Stratified sampling
ER  -