000 00243nam a2200097Ia 4500
100 _aGORAKH PRASAD
245 4 _aTEXT BOOK ON DIFFERENTIAL CALCULUS
260 _bPOTHISHALA PRIVATE LIMITED
_aALLAHABAD
_c1963
650 _aMATHAMATICS
942 _cBK
999 _c64127
_d64127