TY  - BOOK
AU  - Cochran William G
TI  - Sampling techniques
T2  - Wiley series in probability and mathematical statistics
SN  - 0852261217 (hbd)
U1  - B2817, J3;L7;3 
PY  - 1977///
CY  - New Delhi    
PB  -  Wiely eastern limited      
KW  - Sampling theory
N1  - Bibliographical references 400-411p
ER  -