000 002640000a22001090004500
245 _aNature of mathematical ability
100 _aChauhan, C.P.S.
260 _aVaranasi
_bVishwavidyalaya Prakashan
_c1984
080 _a51.001.5
_bC5
041 _aEN
942 _cBK
999 _c120128
_d120128