000 00260nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aB N Asthana
245 0 _aElements of statistics
250 _a4th
260 _aAllahabad
_bChaitanya Pub.
_c1984
942 _cBK
999 _c5154
_d5154