000 00279nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aR S Dahiya/ D P Gupta
245 0 _aCommerce mathematics for pre university
260 _aDelhi
_bLaxmi Pub
_c1981
650 _aMath
942 _cBK
999 _c4108
_d4108