000 00416nam a2200145Ia 4500
008 180713s9999 xx 000 0 und d
082 _a519 A21
100 _a"Asthana, B N "
245 0 _aElements of Statistics
260 _aNew Delhi
260 _b S Chand
260 _c2011
365 _b270
942 _cBK
999 _c113153
_d113153