000			00355nam a2200133Ia 4500
090			_c2621 _d2621
100			_a Das, B.C.
245			_aPre University intermediate trigonometry. _cB.C. Das & B.N. Mukherjee
260			_aCalcutta : _bU.N. Dhur, _c1933.
300			_a271 p.: _bdia; _c20 cm.
650			_aTrigonometry
700			_aMukherjee,B.N.
942			_cBK
999			_c2520 _d2529