TY  - BOOK
AU  - Das, N.G.
TI  - Statistical methods: Volume I
SN  - 978007026506
U1  - 519.5 
PY  - 2018///
CY  - Kolkata
PB  - The World press
KW  - Statistics
KW  - Collections of General Statistics
N1  - Includes appendix and index
ER  -