TY  - BOOK
AU  - Cochran William G
TI  - Sampling Techniques
U1  - 519.52 
PY  - 1999///
CY  - Singapore
PB  - John Wiley & Sons
N1  - Cochran William G: Sampling Techniques.  Singapore.  John Wiley & Sons, 1999.--(519.52COC)
ER  -