TY  - BOOK
AU  - Snedecor,George W.
AU  - Cochran,William G.
TI  - Statistical methods / 
U1  - 311 SNE C  
PY  - 1967///.
CY  - Calcutta : 
PB  - Oxford and IBH 
KW  - Statistical methods
N1  - Include index
ER  -