000			00333nam a2200133Ia 4500
008			211209s1979 xx 000 0 und d
041			_aeng
082			_a516.24 N79 DRO
100			_aDROOYAN I
245			_aTRIGONOMETRY: ANALYTIC APPROACH
250			_a3 ed.
260			_aNEW YORK _bMCGRAW-HILL BOOK COMPANY _c1979
300			_a384
999			_c18974 _d18974