TY  - BOOK
AU  - N. G. DAS
TI  - STATISTICAL  METHHODS
SN  - 9.7800700833e+012
U1  - 310/DAS/STA 
PY  - 2012///
CY  - NEW DELHI
PB  - TATA MCGRAW-HILL
KW  - STATISTICS
ER  -