000 00343nam a22001337a 4500
020 _a8121938538
041 _aeng
082 _a519.5 AST
100 1 _aAsthana, B. N.
245 1 0 _aElements of statistics
_cB. N. Asthana,
260 _aNew Delhi :
_bS. Chand & Company Ltd,
_c2011.
300 _aviii, pv. ;
_c23 cm.
653 _aStatistics
999 _c454817
_d454752