00444nam a2200169Ia 4500082001900000100002800019245003400047260002600081300001000107500000500117690000600122700000500128952010000133964001700233921000900250999001500259  a510.9bG977.CB  aGupta, P. P. and others  aCourse in basic mathematicsb  aDelhibS. Chandc1968  a236p.  a  a   a  00104070aISIbISId1998-09-04l0o510.9 G977.CBpDP4157r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a8494  c8494d8494