000 00259nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aA D Gupta/ R S Dahiya
245 0 _aCoordinate geometry
260 _aDelhi
_bLaxmi Pub
_c1978
650 _aMath
942 _cBK
999 _c3662
_d3662