000 00291nam a2200121Ia 4500
008 210212s9999||||xx |||||||||||||| ||und||
082 _a510 kum.N5
100 _aR. Kumar
245 0 _aSubsidiary Mathematics
260 _c1993
_bVardhman Publications
_aDelhi
300 _a167p.
942 _cSU
999 _c93701
_d93701