000 00279nam a2200121Ia 4500
008 230118s9999||||xx |||||||||||||| ||und||
082 _a515.35
082 _bSHA/D
100 _abhu dev
_bsharma
245 0 _adifferential equations
260 _bkedar nath ram nath
260 _c1963
999 _c6285
_d6285