000 00289nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aM Roy/ S S Seth
245 0 _aDifferential calculus for honour's students
260 _aAgra
_bStudents Friends & Co.
_c1973
650 _aMath
942 _cBK
999 _c2714
_d2714