000 00305nam a2200133Ia 4500
008 210212s9999||||xx |||||||||||||| ||und||
072 _aMath
082 _a515. Kum. N5
_23rd
100 _aKumar,R
245 0 _acalculus
260 _c1995
_bVardhman publications
_aDelhi
300 _a376p.
942 _cSU
999 _c93448
_d93448