000			00332nam a2200145Ia 4500
008			170912s9999 xx 000 0 und d
082			_a GUP/D
100			_aGUPTA PP
100			_aGUPTA R K
100			_aMALIK G S
245		0	_aDIFFERENTIAL CALCULUS
260			_bSAHITYA PRAVARTHAKA CO- _c1983
300			_a156
942			_cTB
999			_c29879 _d29879