000 00249nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aR P Varshney
245 0 _aSankhyiki ke mool tatva
260 _aAgra
_bJawahar Pub
650 _aMath
942 _cBK
999 _c2705
_d2705