TY  - BOOK
AU  - William G. Cochran
TI  - Sampling Techniques. Ed. 3
SN  - 81-265-1524-0
U1  - 519.52 
PY  - 1977///
CY  - New York
PB  - John Wiley and Sons
N1  - William G. Cochran: Sampling Techniques. Ed. 3.  (3rd Ed)  New York.  John Wiley and Sons, 1977. 81-265-1524-0 9971-51-271-8--(519.52COC)
ER  -