000 00323nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aChowdhry, Narendra Kumar
245 0 _aElementary Education And Arithmetic: Conting Systems And Numerals Through The Age
260 _aDelhi
_bShipra
_c2010
300 _a69p.
942 _cBK
999 _c12813
_d12813