TY  - BOOK
AU  - Cochran ,William G.
TI  - Sampling Techniques 
SN  - 0-471-16240-x
AV  - QA  276.6 .C6  1977 5593
PY  - 1977///
CY  - New York.
PB  - John Wiley  &Sons ,inc.
KW  - Sampling (Statistics)
N1  - Inludes Index
ER  -