000 00302nam a2200133Ia 4500
008 230605s9999 xx 000 0 und d
100 _aSingh, S.N.
245 0 _aPrarambhik Sankhiyki
250 _aHindi
260 _bAgrawal Prak.
_aAgra
_c2015
300 _a378
650 _aEducation
942 _cBK
999 _c10780
_d10780