TY  - BOOK
AU  - Cochran William G
TI  - Sampling technigues
T2  - Wiley Publication in Applied Statistics
SN  - 9788126515240
U1  - B2817, J3;N9/TD 
PY  - 1999///
CY  -  New Delhi 
PB  - John Wiley        
KW  - Economics
N1  - Bibliography: P 400-11
ER  -