000			00286nam a2200133Ia 4500
008			190216s9999||||xx |||||||||||||| ||und||
100			_aChatterji. Pn
245		0	_aTrigonometry
250			_a8st Ed.
260			_bNull _c1977
300			_a178p
650			_aMathematics
942			_cBK
999			_c30583 _d30583