000 00304nam a2200133Ia 4500
008 200615s9999||||xx |||||||||||||| ||und||
082 _a510
_bDIF-N
100 _aNARAYAN,SHANTI
245 0 _aDIFFERENTIAL CALCULAS
250 _a1ST
260 _aNEW DELHI
_bS.CHAND
_c2018
300 _a698
942 _cBK
999 _c31820
_d31820