000			00319nam a2200145Ia 4500
003			LDD
040			_cLDD
082			_a516.24 D26H
100			_aDas, B.C
245		0	_aHigher trigonometry _cB.C Das
260			_aCalcutta _bU.N. Dhur & Sons _c1919
300			_axvi, 288p
901			_a14957 _b16-01-2017
942			_2ddc _cG
999			_c2254 _d2254