TY  - BOOK
AU  - Das, N. G.
TI  - Statistical methods : : in commerce, accountancy & economics (part- I & II) 
U1  - 519.5 DAS(STA) 
PY  - 2007///
CY  - Calcutta 
PB  - M. Das &Co. 
KW  - STATISTICAL-METHODS
N1  - Includes appendix
ER  -