TY  - BOOK
AU  - Cochran,William G.;
TI  -  Sampling techniques
SN  - 9971512718
U1  - 519.52 
PY  - 2006///
CY  - New York
PB  - Wiley
KW  - Sampling (Statistics)
KW  - Statistics
N1  - Include Index
ER  -