TY  - BOOK
AU  -  Gupta,C.B.
AU  -  Gupta, Vijay.
TI  -  An introduction to statistical methods / 
U1  -  311.2 
PY  - 1998///
CY  -  New Delhi : 
PB  -  Vikas Publishing House, 
KW  -  Statistics
ER  -