000 00421nam a2200145Ia 4500
008 190516s9999 xx 000 0 und d
100 _aSinha, H. C. and Sharma, J. C.
_917134
245 0 _aTheory and Problems of Differential Equations
260 _bRam Prasad and Sons
_c1970
_aAgra
300 _a329
600 _tMathematics
_9132921
650 _aMathematics
_9132921
942 _cREF
999 _c125311
_d125311