000 00315nam a2200121Ia 4500
008 241014s9999||||xx |||||||||||||| ||und||
020 _a81 85790 62 0
100 _aMrs shubshra singh
245 0 _aA/O Biostatistics introductory calculas
260 _bNirali prakashan
_c2007
650 _aStatistic
942 _bDCOP
_cBK
999 _c124
_d124