000			00315nam a2200133Ia 4500
005			20260205052735.0
008			260111s9999||||xx |||||||||||||| ||und||
082			_a517.3 Si64D
100			_aU.P.Singh
245		0	_aDifferential calculus
260			_aNew Delhi _bDominant _c2000
300			_a240p.
942			_cBK
999			_c119924 _d119924