TY  - BOOK
AU  - Cochran, William G.
TI  - Sampling Techniques / 
SN  - 0852261217
U1  - 519.52 
PY  - 1977///
CY  - .- New Delhi
PB  - : Willey
KW  - Pure Sciences
KW  - Mathematics
KW  - Sampling Techniques
ER  -