000 00269nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aBalbir Singh Kanwar & others
245 0 _aText book of calculus
260 _aDelhi
_bJeevansons
_c1988
650 _aMath
942 _cBK
999 _c6164
_d6164