000 00280nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aO P Chug/ D T Parashar
245 0 _aComprehensive differential calculus
260 _aNew Delhi
_bLaxmi Pub
_c1984
650 _aMath
942 _cBK
999 _c4823
_d4823