TY  - BOOK
AU  - Cochran, William G.
TI  - Sampling techniques, 3rd edition
SN  - 047116240X (paperback) | 97804
U1  - 001.433 C659 S 
PY  - 1977///
CY  - [S.l.]
PB  - Wiley
UR  - http://www.amazon.com/exec/obidos/ASIN/047116240X/chopaconline-20
ER  -