TY  - BOOK
AU  - Gupta, S P.
TI  - Statistical methods
SN  - 9351610284
U1  - 519.5  
PY  - 2006///
CY  - New Delhi
PB  - Sultan chand & sons
KW  - Organising a statistical survey
KW  - Classification and tabulation of data
KW  - Measures of central value
ER  -