TY  - BOOK
AU  - Gupta, C. B.
AU  - Gupta, V.
TI  - An introduction to statistical methods
SN  - 9788125916543
AV  - HA29 .G86
PY  - 2004///
CY  - NewDelhi
PB  - Vikas publishing house
KW  - Statistics
ER  -