000 00276nam a2200121Ia 4500
008 230118s9999||||xx |||||||||||||| ||und||
082 _a515.35
082 _bKHA/D
100 _am.l
_bkhanna
245 0 _adifferential equations
260 _bjai prakash nath&co
260 _c1991
999 _c5436
_d5436