TY  - BOOK
AU  - Cochran,William G.
TI  - Sampling techniques 
U1  - 311.21 COC  
PY  - 1959///.
CY  - Bombay : 
PB  - Asia Publishing House, 
KW  - Sampling techniques
KW  - Sampling (Statistics)
N1  - Including Index.
ER  -