TY  - BOOK
AU  - Gupta, S. P.
TI  - Statistical methods: Statistical methods : contains, besides theory, about 1000 fully soved illustrations and about 1300 problems with answers._1
SN  - 978-81-8054-629-7
U1  - 311 
PY  - 2009///
CY  - New Delhi
PB  - Sultan Chand & sons
ER  -