000 00302nam a2200121Ia 4500
008 190216s9999||||xx |||||||||||||| ||und||
100 _aSharma J N And Gupta R K
245 0 _aDifferential Equations
260 _bKrishna Prakasan Mandir
_c1983
300 _a460p
650 _aMathematics
942 _cBK
999 _c30748
_d30748